Commit | Line | Data |
---|---|---|
d7afae05 | 1 | /* cnic.c: QLogic CNIC core network driver. |
a4636960 | 2 | * |
c3661283 | 3 | * Copyright (c) 2006-2014 Broadcom Corporation |
2e0bf125 | 4 | * Copyright (c) 2014-2015 QLogic Corporation |
a4636960 MC |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation. | |
9 | * | |
10 | * Original skeleton written by: John(Zongxi) Chen (zongxi@broadcom.com) | |
d7afae05 JK |
11 | * Previously modified and maintained by: Michael Chan <mchan@broadcom.com> |
12 | * Maintained By: Dept-HSGLinuxNICDev@qlogic.com | |
a4636960 MC |
13 | */ |
14 | ||
ddf79b20 JP |
15 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
16 | ||
a4636960 MC |
17 | #include <linux/module.h> |
18 | ||
19 | #include <linux/kernel.h> | |
20 | #include <linux/errno.h> | |
21 | #include <linux/list.h> | |
22 | #include <linux/slab.h> | |
23 | #include <linux/pci.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/netdevice.h> | |
26 | #include <linux/uio_driver.h> | |
27 | #include <linux/in.h> | |
28 | #include <linux/dma-mapping.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/ethtool.h> | |
31 | #include <linux/if_vlan.h> | |
70c71606 | 32 | #include <linux/prefetch.h> |
973e574e | 33 | #include <linux/random.h> |
c99d667e | 34 | #if IS_ENABLED(CONFIG_VLAN_8021Q) |
a4636960 MC |
35 | #define BCM_VLAN 1 |
36 | #endif | |
37 | #include <net/ip.h> | |
38 | #include <net/tcp.h> | |
39 | #include <net/route.h> | |
40 | #include <net/ipv6.h> | |
41 | #include <net/ip6_route.h> | |
c05e85a0 | 42 | #include <net/ip6_checksum.h> |
a4636960 MC |
43 | #include <scsi/iscsi_if.h> |
44 | ||
4bd9b0ff | 45 | #define BCM_CNIC 1 |
a4636960 MC |
46 | #include "cnic_if.h" |
47 | #include "bnx2.h" | |
68c64d20 | 48 | #include "bnx2x/bnx2x.h" |
5d1e859c DK |
49 | #include "bnx2x/bnx2x_reg.h" |
50 | #include "bnx2x/bnx2x_fw_defs.h" | |
51 | #include "bnx2x/bnx2x_hsi.h" | |
adfc5217 JK |
52 | #include "../../../scsi/bnx2i/57xx_iscsi_constants.h" |
53 | #include "../../../scsi/bnx2i/57xx_iscsi_hsi.h" | |
8ec3e702 | 54 | #include "../../../scsi/bnx2fc/bnx2fc_constants.h" |
a4636960 MC |
55 | #include "cnic.h" |
56 | #include "cnic_defs.h" | |
57 | ||
68c64d20 | 58 | #define CNIC_MODULE_NAME "cnic" |
a4636960 | 59 | |
047fc566 | 60 | static char version[] = |
2e0bf125 | 61 | "QLogic " CNIC_MODULE_NAME "Driver v" CNIC_MODULE_VERSION " (" CNIC_MODULE_RELDATE ")\n"; |
a4636960 MC |
62 | |
63 | MODULE_AUTHOR("Michael Chan <mchan@broadcom.com> and John(Zongxi) " | |
64 | "Chen (zongxi@broadcom.com"); | |
2e0bf125 | 65 | MODULE_DESCRIPTION("QLogic cnic Driver"); |
a4636960 MC |
66 | MODULE_LICENSE("GPL"); |
67 | MODULE_VERSION(CNIC_MODULE_VERSION); | |
68 | ||
8adc9240 | 69 | /* cnic_dev_list modifications are protected by both rtnl and cnic_dev_lock */ |
a4636960 | 70 | static LIST_HEAD(cnic_dev_list); |
a3ceeeb8 | 71 | static LIST_HEAD(cnic_udev_list); |
a4636960 MC |
72 | static DEFINE_RWLOCK(cnic_dev_lock); |
73 | static DEFINE_MUTEX(cnic_lock); | |
74 | ||
13707f9e ED |
75 | static struct cnic_ulp_ops __rcu *cnic_ulp_tbl[MAX_CNIC_ULP_TYPE]; |
76 | ||
77 | /* helper function, assuming cnic_lock is held */ | |
78 | static inline struct cnic_ulp_ops *cnic_ulp_tbl_prot(int type) | |
79 | { | |
80 | return rcu_dereference_protected(cnic_ulp_tbl[type], | |
81 | lockdep_is_held(&cnic_lock)); | |
82 | } | |
a4636960 MC |
83 | |
84 | static int cnic_service_bnx2(void *, void *); | |
71034ba8 | 85 | static int cnic_service_bnx2x(void *, void *); |
a4636960 MC |
86 | static int cnic_ctl(void *, struct cnic_ctl_info *); |
87 | ||
88 | static struct cnic_ops cnic_bnx2_ops = { | |
89 | .cnic_owner = THIS_MODULE, | |
90 | .cnic_handler = cnic_service_bnx2, | |
91 | .cnic_ctl = cnic_ctl, | |
92 | }; | |
93 | ||
71034ba8 MC |
94 | static struct cnic_ops cnic_bnx2x_ops = { |
95 | .cnic_owner = THIS_MODULE, | |
96 | .cnic_handler = cnic_service_bnx2x, | |
97 | .cnic_ctl = cnic_ctl, | |
98 | }; | |
99 | ||
fdf24086 MC |
100 | static struct workqueue_struct *cnic_wq; |
101 | ||
86b53606 MC |
102 | static void cnic_shutdown_rings(struct cnic_dev *); |
103 | static void cnic_init_rings(struct cnic_dev *); | |
a4636960 MC |
104 | static int cnic_cm_set_pg(struct cnic_sock *); |
105 | ||
106 | static int cnic_uio_open(struct uio_info *uinfo, struct inode *inode) | |
107 | { | |
cd801536 MC |
108 | struct cnic_uio_dev *udev = uinfo->priv; |
109 | struct cnic_dev *dev; | |
a4636960 MC |
110 | |
111 | if (!capable(CAP_NET_ADMIN)) | |
112 | return -EPERM; | |
113 | ||
cd801536 | 114 | if (udev->uio_dev != -1) |
a4636960 MC |
115 | return -EBUSY; |
116 | ||
86b53606 | 117 | rtnl_lock(); |
cd801536 MC |
118 | dev = udev->dev; |
119 | ||
a3ceeeb8 | 120 | if (!dev || !test_bit(CNIC_F_CNIC_UP, &dev->flags)) { |
86b53606 MC |
121 | rtnl_unlock(); |
122 | return -ENODEV; | |
123 | } | |
124 | ||
cd801536 | 125 | udev->uio_dev = iminor(inode); |
a4636960 | 126 | |
a3ceeeb8 | 127 | cnic_shutdown_rings(dev); |
86b53606 MC |
128 | cnic_init_rings(dev); |
129 | rtnl_unlock(); | |
a4636960 MC |
130 | |
131 | return 0; | |
132 | } | |
133 | ||
134 | static int cnic_uio_close(struct uio_info *uinfo, struct inode *inode) | |
135 | { | |
cd801536 | 136 | struct cnic_uio_dev *udev = uinfo->priv; |
6ef57a0e | 137 | |
cd801536 | 138 | udev->uio_dev = -1; |
a4636960 MC |
139 | return 0; |
140 | } | |
141 | ||
142 | static inline void cnic_hold(struct cnic_dev *dev) | |
143 | { | |
144 | atomic_inc(&dev->ref_count); | |
145 | } | |
146 | ||
147 | static inline void cnic_put(struct cnic_dev *dev) | |
148 | { | |
149 | atomic_dec(&dev->ref_count); | |
150 | } | |
151 | ||
152 | static inline void csk_hold(struct cnic_sock *csk) | |
153 | { | |
154 | atomic_inc(&csk->ref_count); | |
155 | } | |
156 | ||
157 | static inline void csk_put(struct cnic_sock *csk) | |
158 | { | |
159 | atomic_dec(&csk->ref_count); | |
160 | } | |
161 | ||
162 | static struct cnic_dev *cnic_from_netdev(struct net_device *netdev) | |
163 | { | |
164 | struct cnic_dev *cdev; | |
165 | ||
166 | read_lock(&cnic_dev_lock); | |
167 | list_for_each_entry(cdev, &cnic_dev_list, list) { | |
168 | if (netdev == cdev->netdev) { | |
169 | cnic_hold(cdev); | |
170 | read_unlock(&cnic_dev_lock); | |
171 | return cdev; | |
172 | } | |
173 | } | |
174 | read_unlock(&cnic_dev_lock); | |
175 | return NULL; | |
176 | } | |
177 | ||
7fc1ece4 MC |
178 | static inline void ulp_get(struct cnic_ulp_ops *ulp_ops) |
179 | { | |
180 | atomic_inc(&ulp_ops->ref_count); | |
181 | } | |
182 | ||
183 | static inline void ulp_put(struct cnic_ulp_ops *ulp_ops) | |
184 | { | |
185 | atomic_dec(&ulp_ops->ref_count); | |
186 | } | |
187 | ||
a4636960 MC |
188 | static void cnic_ctx_wr(struct cnic_dev *dev, u32 cid_addr, u32 off, u32 val) |
189 | { | |
190 | struct cnic_local *cp = dev->cnic_priv; | |
191 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
192 | struct drv_ctl_info info; | |
193 | struct drv_ctl_io *io = &info.data.io; | |
194 | ||
eddb7554 | 195 | memset(&info, 0, sizeof(struct drv_ctl_info)); |
a4636960 MC |
196 | info.cmd = DRV_CTL_CTX_WR_CMD; |
197 | io->cid_addr = cid_addr; | |
198 | io->offset = off; | |
199 | io->data = val; | |
200 | ethdev->drv_ctl(dev->netdev, &info); | |
201 | } | |
202 | ||
71034ba8 MC |
203 | static void cnic_ctx_tbl_wr(struct cnic_dev *dev, u32 off, dma_addr_t addr) |
204 | { | |
205 | struct cnic_local *cp = dev->cnic_priv; | |
206 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
207 | struct drv_ctl_info info; | |
208 | struct drv_ctl_io *io = &info.data.io; | |
209 | ||
eddb7554 | 210 | memset(&info, 0, sizeof(struct drv_ctl_info)); |
71034ba8 MC |
211 | info.cmd = DRV_CTL_CTXTBL_WR_CMD; |
212 | io->offset = off; | |
213 | io->dma_addr = addr; | |
214 | ethdev->drv_ctl(dev->netdev, &info); | |
215 | } | |
216 | ||
217 | static void cnic_ring_ctl(struct cnic_dev *dev, u32 cid, u32 cl_id, int start) | |
218 | { | |
219 | struct cnic_local *cp = dev->cnic_priv; | |
220 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
221 | struct drv_ctl_info info; | |
222 | struct drv_ctl_l2_ring *ring = &info.data.ring; | |
223 | ||
eddb7554 | 224 | memset(&info, 0, sizeof(struct drv_ctl_info)); |
71034ba8 MC |
225 | if (start) |
226 | info.cmd = DRV_CTL_START_L2_CMD; | |
227 | else | |
228 | info.cmd = DRV_CTL_STOP_L2_CMD; | |
229 | ||
230 | ring->cid = cid; | |
231 | ring->client_id = cl_id; | |
232 | ethdev->drv_ctl(dev->netdev, &info); | |
233 | } | |
234 | ||
a4636960 MC |
235 | static void cnic_reg_wr_ind(struct cnic_dev *dev, u32 off, u32 val) |
236 | { | |
237 | struct cnic_local *cp = dev->cnic_priv; | |
238 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
239 | struct drv_ctl_info info; | |
240 | struct drv_ctl_io *io = &info.data.io; | |
241 | ||
eddb7554 | 242 | memset(&info, 0, sizeof(struct drv_ctl_info)); |
a4636960 MC |
243 | info.cmd = DRV_CTL_IO_WR_CMD; |
244 | io->offset = off; | |
245 | io->data = val; | |
246 | ethdev->drv_ctl(dev->netdev, &info); | |
247 | } | |
248 | ||
249 | static u32 cnic_reg_rd_ind(struct cnic_dev *dev, u32 off) | |
250 | { | |
251 | struct cnic_local *cp = dev->cnic_priv; | |
252 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
253 | struct drv_ctl_info info; | |
254 | struct drv_ctl_io *io = &info.data.io; | |
255 | ||
eddb7554 | 256 | memset(&info, 0, sizeof(struct drv_ctl_info)); |
a4636960 MC |
257 | info.cmd = DRV_CTL_IO_RD_CMD; |
258 | io->offset = off; | |
259 | ethdev->drv_ctl(dev->netdev, &info); | |
260 | return io->data; | |
261 | } | |
262 | ||
eddb7554 | 263 | static void cnic_ulp_ctl(struct cnic_dev *dev, int ulp_type, bool reg, int state) |
1d187b34 BW |
264 | { |
265 | struct cnic_local *cp = dev->cnic_priv; | |
266 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
267 | struct drv_ctl_info info; | |
2e499d3c BW |
268 | struct fcoe_capabilities *fcoe_cap = |
269 | &info.data.register_data.fcoe_features; | |
1d187b34 | 270 | |
eddb7554 | 271 | memset(&info, 0, sizeof(struct drv_ctl_info)); |
2e499d3c | 272 | if (reg) { |
1d187b34 | 273 | info.cmd = DRV_CTL_ULP_REGISTER_CMD; |
2e499d3c BW |
274 | if (ulp_type == CNIC_ULP_FCOE && dev->fcoe_cap) |
275 | memcpy(fcoe_cap, dev->fcoe_cap, sizeof(*fcoe_cap)); | |
276 | } else { | |
1d187b34 | 277 | info.cmd = DRV_CTL_ULP_UNREGISTER_CMD; |
2e499d3c | 278 | } |
1d187b34 BW |
279 | |
280 | info.data.ulp_type = ulp_type; | |
eddb7554 | 281 | info.drv_state = state; |
1d187b34 BW |
282 | ethdev->drv_ctl(dev->netdev, &info); |
283 | } | |
284 | ||
a4636960 MC |
285 | static int cnic_in_use(struct cnic_sock *csk) |
286 | { | |
287 | return test_bit(SK_F_INUSE, &csk->flags); | |
288 | } | |
289 | ||
c2bff63f | 290 | static void cnic_spq_completion(struct cnic_dev *dev, int cmd, u32 count) |
a4636960 MC |
291 | { |
292 | struct cnic_local *cp = dev->cnic_priv; | |
293 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
294 | struct drv_ctl_info info; | |
295 | ||
eddb7554 | 296 | memset(&info, 0, sizeof(struct drv_ctl_info)); |
c2bff63f DK |
297 | info.cmd = cmd; |
298 | info.data.credit.credit_count = count; | |
a4636960 MC |
299 | ethdev->drv_ctl(dev->netdev, &info); |
300 | } | |
301 | ||
71034ba8 MC |
302 | static int cnic_get_l5_cid(struct cnic_local *cp, u32 cid, u32 *l5_cid) |
303 | { | |
304 | u32 i; | |
305 | ||
a2028b23 MC |
306 | if (!cp->ctx_tbl) |
307 | return -EINVAL; | |
308 | ||
520efdf4 | 309 | for (i = 0; i < cp->max_cid_space; i++) { |
71034ba8 MC |
310 | if (cp->ctx_tbl[i].cid == cid) { |
311 | *l5_cid = i; | |
312 | return 0; | |
313 | } | |
314 | } | |
315 | return -EINVAL; | |
316 | } | |
317 | ||
a4636960 MC |
318 | static int cnic_send_nlmsg(struct cnic_local *cp, u32 type, |
319 | struct cnic_sock *csk) | |
320 | { | |
321 | struct iscsi_path path_req; | |
322 | char *buf = NULL; | |
323 | u16 len = 0; | |
324 | u32 msg_type = ISCSI_KEVENT_IF_DOWN; | |
325 | struct cnic_ulp_ops *ulp_ops; | |
cd801536 | 326 | struct cnic_uio_dev *udev = cp->udev; |
939b82e5 | 327 | int rc = 0, retry = 0; |
a4636960 | 328 | |
cd801536 | 329 | if (!udev || udev->uio_dev == -1) |
a4636960 MC |
330 | return -ENODEV; |
331 | ||
332 | if (csk) { | |
333 | len = sizeof(path_req); | |
334 | buf = (char *) &path_req; | |
335 | memset(&path_req, 0, len); | |
336 | ||
337 | msg_type = ISCSI_KEVENT_PATH_REQ; | |
338 | path_req.handle = (u64) csk->l5_cid; | |
339 | if (test_bit(SK_F_IPV6, &csk->flags)) { | |
340 | memcpy(&path_req.dst.v6_addr, &csk->dst_ip[0], | |
341 | sizeof(struct in6_addr)); | |
342 | path_req.ip_addr_len = 16; | |
343 | } else { | |
344 | memcpy(&path_req.dst.v4_addr, &csk->dst_ip[0], | |
345 | sizeof(struct in_addr)); | |
346 | path_req.ip_addr_len = 4; | |
347 | } | |
348 | path_req.vlan_id = csk->vlan_id; | |
349 | path_req.pmtu = csk->mtu; | |
350 | } | |
351 | ||
939b82e5 MC |
352 | while (retry < 3) { |
353 | rc = 0; | |
354 | rcu_read_lock(); | |
f7bd12d0 | 355 | ulp_ops = rcu_dereference(cp->ulp_ops[CNIC_ULP_ISCSI]); |
939b82e5 MC |
356 | if (ulp_ops) |
357 | rc = ulp_ops->iscsi_nl_send_msg( | |
358 | cp->ulp_handle[CNIC_ULP_ISCSI], | |
359 | msg_type, buf, len); | |
360 | rcu_read_unlock(); | |
361 | if (rc == 0 || msg_type != ISCSI_KEVENT_PATH_REQ) | |
362 | break; | |
363 | ||
364 | msleep(100); | |
365 | retry++; | |
366 | } | |
558e4c75 | 367 | return rc; |
a4636960 MC |
368 | } |
369 | ||
42ecbb84 EW |
370 | static void cnic_cm_upcall(struct cnic_local *, struct cnic_sock *, u8); |
371 | ||
a4636960 MC |
372 | static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type, |
373 | char *buf, u16 len) | |
374 | { | |
375 | int rc = -EINVAL; | |
376 | ||
377 | switch (msg_type) { | |
378 | case ISCSI_UEVENT_PATH_UPDATE: { | |
379 | struct cnic_local *cp; | |
380 | u32 l5_cid; | |
381 | struct cnic_sock *csk; | |
382 | struct iscsi_path *path_resp; | |
383 | ||
384 | if (len < sizeof(*path_resp)) | |
385 | break; | |
386 | ||
387 | path_resp = (struct iscsi_path *) buf; | |
388 | cp = dev->cnic_priv; | |
389 | l5_cid = (u32) path_resp->handle; | |
390 | if (l5_cid >= MAX_CM_SK_TBL_SZ) | |
391 | break; | |
392 | ||
270b4b31 | 393 | if (!rcu_access_pointer(cp->ulp_ops[CNIC_ULP_L4])) { |
d02a5e6c | 394 | rc = -ENODEV; |
d02a5e6c MC |
395 | break; |
396 | } | |
a4636960 MC |
397 | csk = &cp->csk_tbl[l5_cid]; |
398 | csk_hold(csk); | |
42ecbb84 EW |
399 | if (cnic_in_use(csk) && |
400 | test_bit(SK_F_CONNECT_START, &csk->flags)) { | |
401 | ||
4cbbb04d EW |
402 | csk->vlan_id = path_resp->vlan_id; |
403 | ||
d458cdf7 | 404 | memcpy(csk->ha, path_resp->mac_addr, ETH_ALEN); |
a4636960 MC |
405 | if (test_bit(SK_F_IPV6, &csk->flags)) |
406 | memcpy(&csk->src_ip[0], &path_resp->src.v6_addr, | |
407 | sizeof(struct in6_addr)); | |
408 | else | |
409 | memcpy(&csk->src_ip[0], &path_resp->src.v4_addr, | |
410 | sizeof(struct in_addr)); | |
42ecbb84 EW |
411 | |
412 | if (is_valid_ether_addr(csk->ha)) { | |
a4636960 | 413 | cnic_cm_set_pg(csk); |
42ecbb84 EW |
414 | } else if (!test_bit(SK_F_OFFLD_SCHED, &csk->flags) && |
415 | !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) { | |
416 | ||
417 | cnic_cm_upcall(cp, csk, | |
418 | L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE); | |
419 | clear_bit(SK_F_CONNECT_START, &csk->flags); | |
420 | } | |
a4636960 MC |
421 | } |
422 | csk_put(csk); | |
423 | rc = 0; | |
424 | } | |
425 | } | |
426 | ||
427 | return rc; | |
428 | } | |
429 | ||
430 | static int cnic_offld_prep(struct cnic_sock *csk) | |
431 | { | |
432 | if (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags)) | |
433 | return 0; | |
434 | ||
435 | if (!test_bit(SK_F_CONNECT_START, &csk->flags)) { | |
436 | clear_bit(SK_F_OFFLD_SCHED, &csk->flags); | |
437 | return 0; | |
438 | } | |
439 | ||
440 | return 1; | |
441 | } | |
442 | ||
443 | static int cnic_close_prep(struct cnic_sock *csk) | |
444 | { | |
445 | clear_bit(SK_F_CONNECT_START, &csk->flags); | |
4e857c58 | 446 | smp_mb__after_atomic(); |
a4636960 MC |
447 | |
448 | if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) { | |
449 | while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags)) | |
450 | msleep(1); | |
451 | ||
452 | return 1; | |
453 | } | |
454 | return 0; | |
455 | } | |
456 | ||
457 | static int cnic_abort_prep(struct cnic_sock *csk) | |
458 | { | |
459 | clear_bit(SK_F_CONNECT_START, &csk->flags); | |
4e857c58 | 460 | smp_mb__after_atomic(); |
a4636960 MC |
461 | |
462 | while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags)) | |
463 | msleep(1); | |
464 | ||
465 | if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) { | |
466 | csk->state = L4_KCQE_OPCODE_VALUE_RESET_COMP; | |
467 | return 1; | |
468 | } | |
469 | ||
470 | return 0; | |
471 | } | |
472 | ||
473 | int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops) | |
474 | { | |
475 | struct cnic_dev *dev; | |
476 | ||
0d37f36f | 477 | if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) { |
ddf79b20 | 478 | pr_err("%s: Bad type %d\n", __func__, ulp_type); |
a4636960 MC |
479 | return -EINVAL; |
480 | } | |
481 | mutex_lock(&cnic_lock); | |
13707f9e | 482 | if (cnic_ulp_tbl_prot(ulp_type)) { |
ddf79b20 JP |
483 | pr_err("%s: Type %d has already been registered\n", |
484 | __func__, ulp_type); | |
a4636960 MC |
485 | mutex_unlock(&cnic_lock); |
486 | return -EBUSY; | |
487 | } | |
488 | ||
489 | read_lock(&cnic_dev_lock); | |
490 | list_for_each_entry(dev, &cnic_dev_list, list) { | |
491 | struct cnic_local *cp = dev->cnic_priv; | |
492 | ||
493 | clear_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]); | |
494 | } | |
495 | read_unlock(&cnic_dev_lock); | |
496 | ||
7fc1ece4 | 497 | atomic_set(&ulp_ops->ref_count, 0); |
a4636960 MC |
498 | rcu_assign_pointer(cnic_ulp_tbl[ulp_type], ulp_ops); |
499 | mutex_unlock(&cnic_lock); | |
500 | ||
501 | /* Prevent race conditions with netdev_event */ | |
502 | rtnl_lock(); | |
a4636960 MC |
503 | list_for_each_entry(dev, &cnic_dev_list, list) { |
504 | struct cnic_local *cp = dev->cnic_priv; | |
505 | ||
506 | if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type])) | |
507 | ulp_ops->cnic_init(dev); | |
508 | } | |
a4636960 MC |
509 | rtnl_unlock(); |
510 | ||
511 | return 0; | |
512 | } | |
513 | ||
514 | int cnic_unregister_driver(int ulp_type) | |
515 | { | |
516 | struct cnic_dev *dev; | |
7fc1ece4 MC |
517 | struct cnic_ulp_ops *ulp_ops; |
518 | int i = 0; | |
a4636960 | 519 | |
0d37f36f | 520 | if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) { |
ddf79b20 | 521 | pr_err("%s: Bad type %d\n", __func__, ulp_type); |
a4636960 MC |
522 | return -EINVAL; |
523 | } | |
524 | mutex_lock(&cnic_lock); | |
13707f9e | 525 | ulp_ops = cnic_ulp_tbl_prot(ulp_type); |
7fc1ece4 | 526 | if (!ulp_ops) { |
ddf79b20 JP |
527 | pr_err("%s: Type %d has not been registered\n", |
528 | __func__, ulp_type); | |
a4636960 MC |
529 | goto out_unlock; |
530 | } | |
531 | read_lock(&cnic_dev_lock); | |
532 | list_for_each_entry(dev, &cnic_dev_list, list) { | |
533 | struct cnic_local *cp = dev->cnic_priv; | |
534 | ||
270b4b31 | 535 | if (rcu_access_pointer(cp->ulp_ops[ulp_type])) { |
ddf79b20 JP |
536 | pr_err("%s: Type %d still has devices registered\n", |
537 | __func__, ulp_type); | |
a4636960 MC |
538 | read_unlock(&cnic_dev_lock); |
539 | goto out_unlock; | |
540 | } | |
541 | } | |
542 | read_unlock(&cnic_dev_lock); | |
543 | ||
2cfa5a04 | 544 | RCU_INIT_POINTER(cnic_ulp_tbl[ulp_type], NULL); |
a4636960 MC |
545 | |
546 | mutex_unlock(&cnic_lock); | |
547 | synchronize_rcu(); | |
7fc1ece4 MC |
548 | while ((atomic_read(&ulp_ops->ref_count) != 0) && (i < 20)) { |
549 | msleep(100); | |
550 | i++; | |
551 | } | |
552 | ||
553 | if (atomic_read(&ulp_ops->ref_count) != 0) | |
022f0978 JL |
554 | pr_warn("%s: Failed waiting for ref count to go to zero\n", |
555 | __func__); | |
a4636960 MC |
556 | return 0; |
557 | ||
558 | out_unlock: | |
559 | mutex_unlock(&cnic_lock); | |
560 | return -EINVAL; | |
561 | } | |
562 | ||
563 | static int cnic_start_hw(struct cnic_dev *); | |
564 | static void cnic_stop_hw(struct cnic_dev *); | |
565 | ||
566 | static int cnic_register_device(struct cnic_dev *dev, int ulp_type, | |
567 | void *ulp_ctx) | |
568 | { | |
569 | struct cnic_local *cp = dev->cnic_priv; | |
570 | struct cnic_ulp_ops *ulp_ops; | |
571 | ||
0d37f36f | 572 | if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) { |
ddf79b20 | 573 | pr_err("%s: Bad type %d\n", __func__, ulp_type); |
a4636960 MC |
574 | return -EINVAL; |
575 | } | |
576 | mutex_lock(&cnic_lock); | |
13707f9e | 577 | if (cnic_ulp_tbl_prot(ulp_type) == NULL) { |
ddf79b20 JP |
578 | pr_err("%s: Driver with type %d has not been registered\n", |
579 | __func__, ulp_type); | |
a4636960 MC |
580 | mutex_unlock(&cnic_lock); |
581 | return -EAGAIN; | |
582 | } | |
270b4b31 | 583 | if (rcu_access_pointer(cp->ulp_ops[ulp_type])) { |
ddf79b20 JP |
584 | pr_err("%s: Type %d has already been registered to this device\n", |
585 | __func__, ulp_type); | |
a4636960 MC |
586 | mutex_unlock(&cnic_lock); |
587 | return -EBUSY; | |
588 | } | |
589 | ||
590 | clear_bit(ULP_F_START, &cp->ulp_flags[ulp_type]); | |
591 | cp->ulp_handle[ulp_type] = ulp_ctx; | |
13707f9e | 592 | ulp_ops = cnic_ulp_tbl_prot(ulp_type); |
a4636960 MC |
593 | rcu_assign_pointer(cp->ulp_ops[ulp_type], ulp_ops); |
594 | cnic_hold(dev); | |
595 | ||
596 | if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) | |
597 | if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[ulp_type])) | |
598 | ulp_ops->cnic_start(cp->ulp_handle[ulp_type]); | |
599 | ||
600 | mutex_unlock(&cnic_lock); | |
601 | ||
eddb7554 | 602 | cnic_ulp_ctl(dev, ulp_type, true, DRV_ACTIVE); |
1d187b34 | 603 | |
a4636960 MC |
604 | return 0; |
605 | ||
606 | } | |
607 | EXPORT_SYMBOL(cnic_register_driver); | |
608 | ||
609 | static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type) | |
610 | { | |
611 | struct cnic_local *cp = dev->cnic_priv; | |
681dbd71 | 612 | int i = 0; |
a4636960 | 613 | |
0d37f36f | 614 | if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) { |
ddf79b20 | 615 | pr_err("%s: Bad type %d\n", __func__, ulp_type); |
a4636960 MC |
616 | return -EINVAL; |
617 | } | |
59436914 MC |
618 | |
619 | if (ulp_type == CNIC_ULP_ISCSI) | |
620 | cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL); | |
621 | ||
a4636960 | 622 | mutex_lock(&cnic_lock); |
8f4eb700 | 623 | if (rcu_access_pointer(cp->ulp_ops[ulp_type])) { |
2cfa5a04 | 624 | RCU_INIT_POINTER(cp->ulp_ops[ulp_type], NULL); |
a4636960 MC |
625 | cnic_put(dev); |
626 | } else { | |
ddf79b20 JP |
627 | pr_err("%s: device not registered to this ulp type %d\n", |
628 | __func__, ulp_type); | |
a4636960 MC |
629 | mutex_unlock(&cnic_lock); |
630 | return -EINVAL; | |
631 | } | |
632 | mutex_unlock(&cnic_lock); | |
633 | ||
59436914 | 634 | if (ulp_type == CNIC_ULP_FCOE) |
2e499d3c | 635 | dev->fcoe_cap = NULL; |
42bb8d56 | 636 | |
a4636960 MC |
637 | synchronize_rcu(); |
638 | ||
681dbd71 MC |
639 | while (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]) && |
640 | i < 20) { | |
641 | msleep(100); | |
642 | i++; | |
643 | } | |
644 | if (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type])) | |
ddf79b20 | 645 | netdev_warn(dev->netdev, "Failed waiting for ULP up call to complete\n"); |
681dbd71 | 646 | |
eddb7554 TP |
647 | if (test_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type])) |
648 | cnic_ulp_ctl(dev, ulp_type, false, DRV_UNLOADED); | |
649 | else | |
650 | cnic_ulp_ctl(dev, ulp_type, false, DRV_INACTIVE); | |
1d187b34 | 651 | |
a4636960 MC |
652 | return 0; |
653 | } | |
654 | EXPORT_SYMBOL(cnic_unregister_driver); | |
655 | ||
11f23aa8 EW |
656 | static int cnic_init_id_tbl(struct cnic_id_tbl *id_tbl, u32 size, u32 start_id, |
657 | u32 next) | |
a4636960 MC |
658 | { |
659 | id_tbl->start = start_id; | |
660 | id_tbl->max = size; | |
11f23aa8 | 661 | id_tbl->next = next; |
a4636960 MC |
662 | spin_lock_init(&id_tbl->lock); |
663 | id_tbl->table = kzalloc(DIV_ROUND_UP(size, 32) * 4, GFP_KERNEL); | |
664 | if (!id_tbl->table) | |
665 | return -ENOMEM; | |
666 | ||
667 | return 0; | |
668 | } | |
669 | ||
670 | static void cnic_free_id_tbl(struct cnic_id_tbl *id_tbl) | |
671 | { | |
672 | kfree(id_tbl->table); | |
673 | id_tbl->table = NULL; | |
674 | } | |
675 | ||
676 | static int cnic_alloc_id(struct cnic_id_tbl *id_tbl, u32 id) | |
677 | { | |
678 | int ret = -1; | |
679 | ||
680 | id -= id_tbl->start; | |
681 | if (id >= id_tbl->max) | |
682 | return ret; | |
683 | ||
684 | spin_lock(&id_tbl->lock); | |
685 | if (!test_bit(id, id_tbl->table)) { | |
686 | set_bit(id, id_tbl->table); | |
687 | ret = 0; | |
688 | } | |
689 | spin_unlock(&id_tbl->lock); | |
690 | return ret; | |
691 | } | |
692 | ||
693 | /* Returns -1 if not successful */ | |
694 | static u32 cnic_alloc_new_id(struct cnic_id_tbl *id_tbl) | |
695 | { | |
696 | u32 id; | |
697 | ||
698 | spin_lock(&id_tbl->lock); | |
699 | id = find_next_zero_bit(id_tbl->table, id_tbl->max, id_tbl->next); | |
700 | if (id >= id_tbl->max) { | |
701 | id = -1; | |
702 | if (id_tbl->next != 0) { | |
703 | id = find_first_zero_bit(id_tbl->table, id_tbl->next); | |
704 | if (id >= id_tbl->next) | |
705 | id = -1; | |
706 | } | |
707 | } | |
708 | ||
709 | if (id < id_tbl->max) { | |
710 | set_bit(id, id_tbl->table); | |
711 | id_tbl->next = (id + 1) & (id_tbl->max - 1); | |
712 | id += id_tbl->start; | |
713 | } | |
714 | ||
715 | spin_unlock(&id_tbl->lock); | |
716 | ||
717 | return id; | |
718 | } | |
719 | ||
720 | static void cnic_free_id(struct cnic_id_tbl *id_tbl, u32 id) | |
721 | { | |
722 | if (id == -1) | |
723 | return; | |
724 | ||
725 | id -= id_tbl->start; | |
726 | if (id >= id_tbl->max) | |
727 | return; | |
728 | ||
729 | clear_bit(id, id_tbl->table); | |
730 | } | |
731 | ||
732 | static void cnic_free_dma(struct cnic_dev *dev, struct cnic_dma *dma) | |
733 | { | |
734 | int i; | |
735 | ||
736 | if (!dma->pg_arr) | |
737 | return; | |
738 | ||
739 | for (i = 0; i < dma->num_pages; i++) { | |
740 | if (dma->pg_arr[i]) { | |
be1fefc2 | 741 | dma_free_coherent(&dev->pcidev->dev, CNIC_PAGE_SIZE, |
3248e168 | 742 | dma->pg_arr[i], dma->pg_map_arr[i]); |
a4636960 MC |
743 | dma->pg_arr[i] = NULL; |
744 | } | |
745 | } | |
746 | if (dma->pgtbl) { | |
3248e168 MC |
747 | dma_free_coherent(&dev->pcidev->dev, dma->pgtbl_size, |
748 | dma->pgtbl, dma->pgtbl_map); | |
a4636960 MC |
749 | dma->pgtbl = NULL; |
750 | } | |
751 | kfree(dma->pg_arr); | |
752 | dma->pg_arr = NULL; | |
753 | dma->num_pages = 0; | |
754 | } | |
755 | ||
756 | static void cnic_setup_page_tbl(struct cnic_dev *dev, struct cnic_dma *dma) | |
757 | { | |
758 | int i; | |
5138826b | 759 | __le32 *page_table = (__le32 *) dma->pgtbl; |
a4636960 MC |
760 | |
761 | for (i = 0; i < dma->num_pages; i++) { | |
762 | /* Each entry needs to be in big endian format. */ | |
5138826b | 763 | *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32); |
a4636960 | 764 | page_table++; |
5138826b | 765 | *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff); |
a4636960 MC |
766 | page_table++; |
767 | } | |
768 | } | |
769 | ||
71034ba8 MC |
770 | static void cnic_setup_page_tbl_le(struct cnic_dev *dev, struct cnic_dma *dma) |
771 | { | |
772 | int i; | |
5138826b | 773 | __le32 *page_table = (__le32 *) dma->pgtbl; |
71034ba8 MC |
774 | |
775 | for (i = 0; i < dma->num_pages; i++) { | |
776 | /* Each entry needs to be in little endian format. */ | |
5138826b | 777 | *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff); |
71034ba8 | 778 | page_table++; |
5138826b | 779 | *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32); |
71034ba8 MC |
780 | page_table++; |
781 | } | |
782 | } | |
783 | ||
a4636960 MC |
784 | static int cnic_alloc_dma(struct cnic_dev *dev, struct cnic_dma *dma, |
785 | int pages, int use_pg_tbl) | |
786 | { | |
787 | int i, size; | |
788 | struct cnic_local *cp = dev->cnic_priv; | |
789 | ||
790 | size = pages * (sizeof(void *) + sizeof(dma_addr_t)); | |
791 | dma->pg_arr = kzalloc(size, GFP_ATOMIC); | |
792 | if (dma->pg_arr == NULL) | |
793 | return -ENOMEM; | |
794 | ||
795 | dma->pg_map_arr = (dma_addr_t *) (dma->pg_arr + pages); | |
796 | dma->num_pages = pages; | |
797 | ||
798 | for (i = 0; i < pages; i++) { | |
3248e168 | 799 | dma->pg_arr[i] = dma_alloc_coherent(&dev->pcidev->dev, |
be1fefc2 | 800 | CNIC_PAGE_SIZE, |
3248e168 MC |
801 | &dma->pg_map_arr[i], |
802 | GFP_ATOMIC); | |
a4636960 MC |
803 | if (dma->pg_arr[i] == NULL) |
804 | goto error; | |
805 | } | |
806 | if (!use_pg_tbl) | |
807 | return 0; | |
808 | ||
be1fefc2 MC |
809 | dma->pgtbl_size = ((pages * 8) + CNIC_PAGE_SIZE - 1) & |
810 | ~(CNIC_PAGE_SIZE - 1); | |
3248e168 MC |
811 | dma->pgtbl = dma_alloc_coherent(&dev->pcidev->dev, dma->pgtbl_size, |
812 | &dma->pgtbl_map, GFP_ATOMIC); | |
a4636960 MC |
813 | if (dma->pgtbl == NULL) |
814 | goto error; | |
815 | ||
816 | cp->setup_pgtbl(dev, dma); | |
817 | ||
818 | return 0; | |
819 | ||
820 | error: | |
821 | cnic_free_dma(dev, dma); | |
822 | return -ENOMEM; | |
823 | } | |
824 | ||
86b53606 MC |
825 | static void cnic_free_context(struct cnic_dev *dev) |
826 | { | |
827 | struct cnic_local *cp = dev->cnic_priv; | |
828 | int i; | |
829 | ||
830 | for (i = 0; i < cp->ctx_blks; i++) { | |
831 | if (cp->ctx_arr[i].ctx) { | |
3248e168 MC |
832 | dma_free_coherent(&dev->pcidev->dev, cp->ctx_blk_size, |
833 | cp->ctx_arr[i].ctx, | |
834 | cp->ctx_arr[i].mapping); | |
86b53606 MC |
835 | cp->ctx_arr[i].ctx = NULL; |
836 | } | |
837 | } | |
838 | } | |
839 | ||
74dd0c42 | 840 | static void __cnic_free_uio_rings(struct cnic_uio_dev *udev) |
a4636960 | 841 | { |
cd801536 MC |
842 | if (udev->l2_buf) { |
843 | dma_free_coherent(&udev->pdev->dev, udev->l2_buf_size, | |
844 | udev->l2_buf, udev->l2_buf_map); | |
845 | udev->l2_buf = NULL; | |
a4636960 MC |
846 | } |
847 | ||
cd801536 MC |
848 | if (udev->l2_ring) { |
849 | dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size, | |
850 | udev->l2_ring, udev->l2_ring_map); | |
851 | udev->l2_ring = NULL; | |
a4636960 | 852 | } |
a3ceeeb8 | 853 | |
74dd0c42 MC |
854 | } |
855 | ||
856 | static void __cnic_free_uio(struct cnic_uio_dev *udev) | |
857 | { | |
858 | uio_unregister_device(&udev->cnic_uinfo); | |
859 | ||
860 | __cnic_free_uio_rings(udev); | |
861 | ||
a3ceeeb8 MC |
862 | pci_dev_put(udev->pdev); |
863 | kfree(udev); | |
c06c0462 MC |
864 | } |
865 | ||
cd801536 | 866 | static void cnic_free_uio(struct cnic_uio_dev *udev) |
c06c0462 | 867 | { |
cd801536 | 868 | if (!udev) |
c06c0462 MC |
869 | return; |
870 | ||
a3ceeeb8 MC |
871 | write_lock(&cnic_dev_lock); |
872 | list_del_init(&udev->list); | |
873 | write_unlock(&cnic_dev_lock); | |
cd801536 | 874 | __cnic_free_uio(udev); |
c06c0462 MC |
875 | } |
876 | ||
877 | static void cnic_free_resc(struct cnic_dev *dev) | |
878 | { | |
879 | struct cnic_local *cp = dev->cnic_priv; | |
cd801536 | 880 | struct cnic_uio_dev *udev = cp->udev; |
c06c0462 | 881 | |
cd801536 | 882 | if (udev) { |
a3ceeeb8 | 883 | udev->dev = NULL; |
cd801536 | 884 | cp->udev = NULL; |
f81b0ac4 MC |
885 | if (udev->uio_dev == -1) |
886 | __cnic_free_uio_rings(udev); | |
c06c0462 | 887 | } |
a4636960 | 888 | |
86b53606 | 889 | cnic_free_context(dev); |
a4636960 MC |
890 | kfree(cp->ctx_arr); |
891 | cp->ctx_arr = NULL; | |
892 | cp->ctx_blks = 0; | |
893 | ||
894 | cnic_free_dma(dev, &cp->gbl_buf_info); | |
a4636960 | 895 | cnic_free_dma(dev, &cp->kwq_info); |
71034ba8 | 896 | cnic_free_dma(dev, &cp->kwq_16_data_info); |
e21ba414 | 897 | cnic_free_dma(dev, &cp->kcq2.dma); |
e6c28894 | 898 | cnic_free_dma(dev, &cp->kcq1.dma); |
a4636960 MC |
899 | kfree(cp->iscsi_tbl); |
900 | cp->iscsi_tbl = NULL; | |
901 | kfree(cp->ctx_tbl); | |
902 | cp->ctx_tbl = NULL; | |
903 | ||
e1928c86 | 904 | cnic_free_id_tbl(&cp->fcoe_cid_tbl); |
a4636960 MC |
905 | cnic_free_id_tbl(&cp->cid_tbl); |
906 | } | |
907 | ||
908 | static int cnic_alloc_context(struct cnic_dev *dev) | |
909 | { | |
910 | struct cnic_local *cp = dev->cnic_priv; | |
911 | ||
4ce45e02 | 912 | if (BNX2_CHIP(cp) == BNX2_CHIP_5709) { |
a4636960 MC |
913 | int i, k, arr_size; |
914 | ||
be1fefc2 MC |
915 | cp->ctx_blk_size = CNIC_PAGE_SIZE; |
916 | cp->cids_per_blk = CNIC_PAGE_SIZE / 128; | |
a4636960 MC |
917 | arr_size = BNX2_MAX_CID / cp->cids_per_blk * |
918 | sizeof(struct cnic_ctx); | |
919 | cp->ctx_arr = kzalloc(arr_size, GFP_KERNEL); | |
920 | if (cp->ctx_arr == NULL) | |
921 | return -ENOMEM; | |
922 | ||
923 | k = 0; | |
924 | for (i = 0; i < 2; i++) { | |
925 | u32 j, reg, off, lo, hi; | |
926 | ||
927 | if (i == 0) | |
928 | off = BNX2_PG_CTX_MAP; | |
929 | else | |
930 | off = BNX2_ISCSI_CTX_MAP; | |
931 | ||
932 | reg = cnic_reg_rd_ind(dev, off); | |
933 | lo = reg >> 16; | |
934 | hi = reg & 0xffff; | |
935 | for (j = lo; j < hi; j += cp->cids_per_blk, k++) | |
936 | cp->ctx_arr[k].cid = j; | |
937 | } | |
938 | ||
939 | cp->ctx_blks = k; | |
940 | if (cp->ctx_blks >= (BNX2_MAX_CID / cp->cids_per_blk)) { | |
941 | cp->ctx_blks = 0; | |
942 | return -ENOMEM; | |
943 | } | |
944 | ||
945 | for (i = 0; i < cp->ctx_blks; i++) { | |
946 | cp->ctx_arr[i].ctx = | |
3248e168 | 947 | dma_alloc_coherent(&dev->pcidev->dev, |
be1fefc2 | 948 | CNIC_PAGE_SIZE, |
3248e168 MC |
949 | &cp->ctx_arr[i].mapping, |
950 | GFP_KERNEL); | |
a4636960 MC |
951 | if (cp->ctx_arr[i].ctx == NULL) |
952 | return -ENOMEM; | |
953 | } | |
954 | } | |
955 | return 0; | |
956 | } | |
957 | ||
59e51373 MC |
958 | static u16 cnic_bnx2_next_idx(u16 idx) |
959 | { | |
960 | return idx + 1; | |
961 | } | |
962 | ||
963 | static u16 cnic_bnx2_hw_idx(u16 idx) | |
964 | { | |
965 | return idx; | |
966 | } | |
967 | ||
968 | static u16 cnic_bnx2x_next_idx(u16 idx) | |
e6c28894 | 969 | { |
59e51373 MC |
970 | idx++; |
971 | if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT) | |
972 | idx++; | |
973 | ||
974 | return idx; | |
975 | } | |
976 | ||
977 | static u16 cnic_bnx2x_hw_idx(u16 idx) | |
978 | { | |
979 | if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT) | |
980 | idx++; | |
981 | return idx; | |
982 | } | |
983 | ||
984 | static int cnic_alloc_kcq(struct cnic_dev *dev, struct kcq_info *info, | |
985 | bool use_pg_tbl) | |
986 | { | |
987 | int err, i, use_page_tbl = 0; | |
e6c28894 MC |
988 | struct kcqe **kcq; |
989 | ||
59e51373 MC |
990 | if (use_pg_tbl) |
991 | use_page_tbl = 1; | |
e6c28894 | 992 | |
59e51373 | 993 | err = cnic_alloc_dma(dev, &info->dma, KCQ_PAGE_CNT, use_page_tbl); |
e6c28894 MC |
994 | if (err) |
995 | return err; | |
996 | ||
997 | kcq = (struct kcqe **) info->dma.pg_arr; | |
998 | info->kcq = kcq; | |
999 | ||
59e51373 MC |
1000 | info->next_idx = cnic_bnx2_next_idx; |
1001 | info->hw_idx = cnic_bnx2_hw_idx; | |
1002 | if (use_pg_tbl) | |
e6c28894 MC |
1003 | return 0; |
1004 | ||
59e51373 MC |
1005 | info->next_idx = cnic_bnx2x_next_idx; |
1006 | info->hw_idx = cnic_bnx2x_hw_idx; | |
1007 | ||
e6c28894 MC |
1008 | for (i = 0; i < KCQ_PAGE_CNT; i++) { |
1009 | struct bnx2x_bd_chain_next *next = | |
1010 | (struct bnx2x_bd_chain_next *) &kcq[i][MAX_KCQE_CNT]; | |
1011 | int j = i + 1; | |
1012 | ||
1013 | if (j >= KCQ_PAGE_CNT) | |
1014 | j = 0; | |
1015 | next->addr_hi = (u64) info->dma.pg_map_arr[j] >> 32; | |
1016 | next->addr_lo = info->dma.pg_map_arr[j] & 0xffffffff; | |
1017 | } | |
1018 | return 0; | |
1019 | } | |
1020 | ||
74dd0c42 MC |
1021 | static int __cnic_alloc_uio_rings(struct cnic_uio_dev *udev, int pages) |
1022 | { | |
1023 | struct cnic_local *cp = udev->dev->cnic_priv; | |
1024 | ||
1025 | if (udev->l2_ring) | |
1026 | return 0; | |
1027 | ||
be1fefc2 | 1028 | udev->l2_ring_size = pages * CNIC_PAGE_SIZE; |
74dd0c42 MC |
1029 | udev->l2_ring = dma_alloc_coherent(&udev->pdev->dev, udev->l2_ring_size, |
1030 | &udev->l2_ring_map, | |
1031 | GFP_KERNEL | __GFP_COMP); | |
1032 | if (!udev->l2_ring) | |
1033 | return -ENOMEM; | |
1034 | ||
1035 | udev->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size; | |
be1fefc2 | 1036 | udev->l2_buf_size = CNIC_PAGE_ALIGN(udev->l2_buf_size); |
74dd0c42 MC |
1037 | udev->l2_buf = dma_alloc_coherent(&udev->pdev->dev, udev->l2_buf_size, |
1038 | &udev->l2_buf_map, | |
1039 | GFP_KERNEL | __GFP_COMP); | |
1040 | if (!udev->l2_buf) { | |
1041 | __cnic_free_uio_rings(udev); | |
1042 | return -ENOMEM; | |
1043 | } | |
1044 | ||
1045 | return 0; | |
1046 | ||
1047 | } | |
1048 | ||
cd801536 | 1049 | static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages) |
ec0248ea MC |
1050 | { |
1051 | struct cnic_local *cp = dev->cnic_priv; | |
cd801536 MC |
1052 | struct cnic_uio_dev *udev; |
1053 | ||
a3ceeeb8 MC |
1054 | list_for_each_entry(udev, &cnic_udev_list, list) { |
1055 | if (udev->pdev == dev->pcidev) { | |
1056 | udev->dev = dev; | |
f81b0ac4 MC |
1057 | if (__cnic_alloc_uio_rings(udev, pages)) { |
1058 | udev->dev = NULL; | |
f81b0ac4 MC |
1059 | return -ENOMEM; |
1060 | } | |
a3ceeeb8 | 1061 | cp->udev = udev; |
a3ceeeb8 MC |
1062 | return 0; |
1063 | } | |
1064 | } | |
a3ceeeb8 | 1065 | |
cd801536 MC |
1066 | udev = kzalloc(sizeof(struct cnic_uio_dev), GFP_ATOMIC); |
1067 | if (!udev) | |
1068 | return -ENOMEM; | |
1069 | ||
1070 | udev->uio_dev = -1; | |
ec0248ea | 1071 | |
cd801536 MC |
1072 | udev->dev = dev; |
1073 | udev->pdev = dev->pcidev; | |
ec0248ea | 1074 | |
74dd0c42 MC |
1075 | if (__cnic_alloc_uio_rings(udev, pages)) |
1076 | goto err_udev; | |
ec0248ea | 1077 | |
a3ceeeb8 | 1078 | list_add(&udev->list, &cnic_udev_list); |
a3ceeeb8 MC |
1079 | |
1080 | pci_dev_get(udev->pdev); | |
1081 | ||
cd801536 MC |
1082 | cp->udev = udev; |
1083 | ||
ec0248ea | 1084 | return 0; |
74dd0c42 | 1085 | |
f7e4c977 JJ |
1086 | err_udev: |
1087 | kfree(udev); | |
1088 | return -ENOMEM; | |
ec0248ea MC |
1089 | } |
1090 | ||
cd801536 MC |
1091 | static int cnic_init_uio(struct cnic_dev *dev) |
1092 | { | |
a4636960 | 1093 | struct cnic_local *cp = dev->cnic_priv; |
cd801536 | 1094 | struct cnic_uio_dev *udev = cp->udev; |
a4636960 | 1095 | struct uio_info *uinfo; |
cd801536 | 1096 | int ret = 0; |
a4636960 | 1097 | |
cd801536 | 1098 | if (!udev) |
5e9b2dbf | 1099 | return -ENOMEM; |
a4636960 | 1100 | |
cd801536 MC |
1101 | uinfo = &udev->cnic_uinfo; |
1102 | ||
ae0eef66 MC |
1103 | uinfo->mem[0].addr = pci_resource_start(dev->pcidev, 0); |
1104 | uinfo->mem[0].internal_addr = dev->regview; | |
1105 | uinfo->mem[0].memtype = UIO_MEM_PHYS; | |
a4636960 | 1106 | |
5e9b2dbf | 1107 | if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) { |
ae0eef66 MC |
1108 | uinfo->mem[0].size = MB_GET_CID_ADDR(TX_TSS_CID + |
1109 | TX_MAX_TSS_RINGS + 1); | |
a4dde3ab | 1110 | uinfo->mem[1].addr = (unsigned long) cp->status_blk.gen & |
be1fefc2 | 1111 | CNIC_PAGE_MASK; |
5e9b2dbf MC |
1112 | if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) |
1113 | uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE * 9; | |
1114 | else | |
1115 | uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE; | |
1116 | ||
1117 | uinfo->name = "bnx2_cnic"; | |
71034ba8 | 1118 | } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) { |
ae0eef66 MC |
1119 | uinfo->mem[0].size = pci_resource_len(dev->pcidev, 0); |
1120 | ||
71034ba8 | 1121 | uinfo->mem[1].addr = (unsigned long) cp->bnx2x_def_status_blk & |
be1fefc2 | 1122 | CNIC_PAGE_MASK; |
523224a3 | 1123 | uinfo->mem[1].size = sizeof(*cp->bnx2x_def_status_blk); |
71034ba8 MC |
1124 | |
1125 | uinfo->name = "bnx2x_cnic"; | |
5e9b2dbf MC |
1126 | } |
1127 | ||
a4636960 MC |
1128 | uinfo->mem[1].memtype = UIO_MEM_LOGICAL; |
1129 | ||
cd801536 MC |
1130 | uinfo->mem[2].addr = (unsigned long) udev->l2_ring; |
1131 | uinfo->mem[2].size = udev->l2_ring_size; | |
a4636960 MC |
1132 | uinfo->mem[2].memtype = UIO_MEM_LOGICAL; |
1133 | ||
cd801536 MC |
1134 | uinfo->mem[3].addr = (unsigned long) udev->l2_buf; |
1135 | uinfo->mem[3].size = udev->l2_buf_size; | |
a4636960 MC |
1136 | uinfo->mem[3].memtype = UIO_MEM_LOGICAL; |
1137 | ||
a4636960 MC |
1138 | uinfo->version = CNIC_MODULE_VERSION; |
1139 | uinfo->irq = UIO_IRQ_CUSTOM; | |
1140 | ||
1141 | uinfo->open = cnic_uio_open; | |
1142 | uinfo->release = cnic_uio_close; | |
1143 | ||
a3ceeeb8 MC |
1144 | if (udev->uio_dev == -1) { |
1145 | if (!uinfo->priv) { | |
1146 | uinfo->priv = udev; | |
a4636960 | 1147 | |
a3ceeeb8 MC |
1148 | ret = uio_register_device(&udev->pdev->dev, uinfo); |
1149 | } | |
1150 | } else { | |
1151 | cnic_init_rings(dev); | |
1152 | } | |
a4636960 | 1153 | |
cd801536 | 1154 | return ret; |
5e9b2dbf MC |
1155 | } |
1156 | ||
1157 | static int cnic_alloc_bnx2_resc(struct cnic_dev *dev) | |
1158 | { | |
1159 | struct cnic_local *cp = dev->cnic_priv; | |
1160 | int ret; | |
1161 | ||
1162 | ret = cnic_alloc_dma(dev, &cp->kwq_info, KWQ_PAGE_CNT, 1); | |
1163 | if (ret) | |
1164 | goto error; | |
1165 | cp->kwq = (struct kwqe **) cp->kwq_info.pg_arr; | |
1166 | ||
59e51373 | 1167 | ret = cnic_alloc_kcq(dev, &cp->kcq1, true); |
5e9b2dbf MC |
1168 | if (ret) |
1169 | goto error; | |
5e9b2dbf MC |
1170 | |
1171 | ret = cnic_alloc_context(dev); | |
1172 | if (ret) | |
1173 | goto error; | |
1174 | ||
cd801536 | 1175 | ret = cnic_alloc_uio_rings(dev, 2); |
5e9b2dbf MC |
1176 | if (ret) |
1177 | goto error; | |
1178 | ||
cd801536 | 1179 | ret = cnic_init_uio(dev); |
5e9b2dbf MC |
1180 | if (ret) |
1181 | goto error; | |
a4636960 MC |
1182 | |
1183 | return 0; | |
1184 | ||
1185 | error: | |
1186 | cnic_free_resc(dev); | |
1187 | return ret; | |
1188 | } | |
1189 | ||
71034ba8 MC |
1190 | static int cnic_alloc_bnx2x_context(struct cnic_dev *dev) |
1191 | { | |
1192 | struct cnic_local *cp = dev->cnic_priv; | |
104a43ed | 1193 | struct bnx2x *bp = netdev_priv(dev->netdev); |
71034ba8 | 1194 | int ctx_blk_size = cp->ethdev->ctx_blk_size; |
520efdf4 | 1195 | int total_mem, blks, i; |
71034ba8 | 1196 | |
520efdf4 | 1197 | total_mem = BNX2X_CONTEXT_MEM_SIZE * cp->max_cid_space; |
71034ba8 MC |
1198 | blks = total_mem / ctx_blk_size; |
1199 | if (total_mem % ctx_blk_size) | |
1200 | blks++; | |
1201 | ||
1202 | if (blks > cp->ethdev->ctx_tbl_len) | |
1203 | return -ENOMEM; | |
1204 | ||
baeb2ffa | 1205 | cp->ctx_arr = kcalloc(blks, sizeof(struct cnic_ctx), GFP_KERNEL); |
71034ba8 MC |
1206 | if (cp->ctx_arr == NULL) |
1207 | return -ENOMEM; | |
1208 | ||
1209 | cp->ctx_blks = blks; | |
1210 | cp->ctx_blk_size = ctx_blk_size; | |
104a43ed | 1211 | if (!CHIP_IS_E1(bp)) |
71034ba8 MC |
1212 | cp->ctx_align = 0; |
1213 | else | |
1214 | cp->ctx_align = ctx_blk_size; | |
1215 | ||
1216 | cp->cids_per_blk = ctx_blk_size / BNX2X_CONTEXT_MEM_SIZE; | |
1217 | ||
1218 | for (i = 0; i < blks; i++) { | |
1219 | cp->ctx_arr[i].ctx = | |
3248e168 MC |
1220 | dma_alloc_coherent(&dev->pcidev->dev, cp->ctx_blk_size, |
1221 | &cp->ctx_arr[i].mapping, | |
1222 | GFP_KERNEL); | |
71034ba8 MC |
1223 | if (cp->ctx_arr[i].ctx == NULL) |
1224 | return -ENOMEM; | |
1225 | ||
1226 | if (cp->ctx_align && cp->ctx_blk_size == ctx_blk_size) { | |
1227 | if (cp->ctx_arr[i].mapping & (cp->ctx_align - 1)) { | |
1228 | cnic_free_context(dev); | |
1229 | cp->ctx_blk_size += cp->ctx_align; | |
1230 | i = -1; | |
1231 | continue; | |
1232 | } | |
1233 | } | |
1234 | } | |
1235 | return 0; | |
1236 | } | |
1237 | ||
1238 | static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev) | |
1239 | { | |
1240 | struct cnic_local *cp = dev->cnic_priv; | |
104a43ed | 1241 | struct bnx2x *bp = netdev_priv(dev->netdev); |
520efdf4 MC |
1242 | struct cnic_eth_dev *ethdev = cp->ethdev; |
1243 | u32 start_cid = ethdev->starting_cid; | |
71034ba8 MC |
1244 | int i, j, n, ret, pages; |
1245 | struct cnic_dma *kwq_16_dma = &cp->kwq_16_data_info; | |
1246 | ||
b37a41e3 | 1247 | cp->max_cid_space = MAX_ISCSI_TBL_SZ; |
520efdf4 | 1248 | cp->iscsi_start_cid = start_cid; |
e1928c86 MC |
1249 | cp->fcoe_start_cid = start_cid + MAX_ISCSI_TBL_SZ; |
1250 | ||
104a43ed | 1251 | if (BNX2X_CHIP_IS_E2_PLUS(bp)) { |
dc219a2e | 1252 | cp->max_cid_space += dev->max_fcoe_conn; |
e1928c86 MC |
1253 | cp->fcoe_init_cid = ethdev->fcoe_init_cid; |
1254 | if (!cp->fcoe_init_cid) | |
1255 | cp->fcoe_init_cid = 0x10; | |
1256 | } | |
1257 | ||
71034ba8 MC |
1258 | cp->iscsi_tbl = kzalloc(sizeof(struct cnic_iscsi) * MAX_ISCSI_TBL_SZ, |
1259 | GFP_KERNEL); | |
1260 | if (!cp->iscsi_tbl) | |
1261 | goto error; | |
1262 | ||
1263 | cp->ctx_tbl = kzalloc(sizeof(struct cnic_context) * | |
520efdf4 | 1264 | cp->max_cid_space, GFP_KERNEL); |
71034ba8 MC |
1265 | if (!cp->ctx_tbl) |
1266 | goto error; | |
1267 | ||
1268 | for (i = 0; i < MAX_ISCSI_TBL_SZ; i++) { | |
1269 | cp->ctx_tbl[i].proto.iscsi = &cp->iscsi_tbl[i]; | |
1270 | cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_ISCSI; | |
1271 | } | |
1272 | ||
e1928c86 MC |
1273 | for (i = MAX_ISCSI_TBL_SZ; i < cp->max_cid_space; i++) |
1274 | cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_FCOE; | |
1275 | ||
be1fefc2 MC |
1276 | pages = CNIC_PAGE_ALIGN(cp->max_cid_space * CNIC_KWQ16_DATA_SIZE) / |
1277 | CNIC_PAGE_SIZE; | |
71034ba8 MC |
1278 | |
1279 | ret = cnic_alloc_dma(dev, kwq_16_dma, pages, 0); | |
1280 | if (ret) | |
1281 | return -ENOMEM; | |
1282 | ||
be1fefc2 | 1283 | n = CNIC_PAGE_SIZE / CNIC_KWQ16_DATA_SIZE; |
520efdf4 | 1284 | for (i = 0, j = 0; i < cp->max_cid_space; i++) { |
71034ba8 MC |
1285 | long off = CNIC_KWQ16_DATA_SIZE * (i % n); |
1286 | ||
1287 | cp->ctx_tbl[i].kwqe_data = kwq_16_dma->pg_arr[j] + off; | |
1288 | cp->ctx_tbl[i].kwqe_data_mapping = kwq_16_dma->pg_map_arr[j] + | |
1289 | off; | |
1290 | ||
1291 | if ((i % n) == (n - 1)) | |
1292 | j++; | |
1293 | } | |
1294 | ||
59e51373 | 1295 | ret = cnic_alloc_kcq(dev, &cp->kcq1, false); |
71034ba8 MC |
1296 | if (ret) |
1297 | goto error; | |
71034ba8 | 1298 | |
104a43ed | 1299 | if (CNIC_SUPPORTS_FCOE(bp)) { |
619c5cb6 | 1300 | ret = cnic_alloc_kcq(dev, &cp->kcq2, true); |
e21ba414 MC |
1301 | if (ret) |
1302 | goto error; | |
1303 | } | |
1304 | ||
be1fefc2 | 1305 | pages = CNIC_PAGE_ALIGN(BNX2X_ISCSI_GLB_BUF_SIZE) / CNIC_PAGE_SIZE; |
71034ba8 MC |
1306 | ret = cnic_alloc_dma(dev, &cp->gbl_buf_info, pages, 0); |
1307 | if (ret) | |
1308 | goto error; | |
1309 | ||
1310 | ret = cnic_alloc_bnx2x_context(dev); | |
1311 | if (ret) | |
1312 | goto error; | |
1313 | ||
82346a7b MC |
1314 | if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI) |
1315 | return 0; | |
1316 | ||
71034ba8 MC |
1317 | cp->bnx2x_def_status_blk = cp->ethdev->irq_arr[1].status_blk; |
1318 | ||
1319 | cp->l2_rx_ring_size = 15; | |
1320 | ||
cd801536 | 1321 | ret = cnic_alloc_uio_rings(dev, 4); |
71034ba8 MC |
1322 | if (ret) |
1323 | goto error; | |
1324 | ||
cd801536 | 1325 | ret = cnic_init_uio(dev); |
71034ba8 MC |
1326 | if (ret) |
1327 | goto error; | |
1328 | ||
1329 | return 0; | |
1330 | ||
1331 | error: | |
1332 | cnic_free_resc(dev); | |
1333 | return -ENOMEM; | |
1334 | } | |
1335 | ||
a4636960 MC |
1336 | static inline u32 cnic_kwq_avail(struct cnic_local *cp) |
1337 | { | |
1338 | return cp->max_kwq_idx - | |
1339 | ((cp->kwq_prod_idx - cp->kwq_con_idx) & cp->max_kwq_idx); | |
1340 | } | |
1341 | ||
1342 | static int cnic_submit_bnx2_kwqes(struct cnic_dev *dev, struct kwqe *wqes[], | |
1343 | u32 num_wqes) | |
1344 | { | |
1345 | struct cnic_local *cp = dev->cnic_priv; | |
1346 | struct kwqe *prod_qe; | |
1347 | u16 prod, sw_prod, i; | |
1348 | ||
1349 | if (!test_bit(CNIC_F_CNIC_UP, &dev->flags)) | |
1350 | return -EAGAIN; /* bnx2 is down */ | |
1351 | ||
1352 | spin_lock_bh(&cp->cnic_ulp_lock); | |
1353 | if (num_wqes > cnic_kwq_avail(cp) && | |
1f1332a3 | 1354 | !test_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags)) { |
a4636960 MC |
1355 | spin_unlock_bh(&cp->cnic_ulp_lock); |
1356 | return -EAGAIN; | |
1357 | } | |
1358 | ||
1f1332a3 | 1359 | clear_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags); |
a4636960 MC |
1360 | |
1361 | prod = cp->kwq_prod_idx; | |
1362 | sw_prod = prod & MAX_KWQ_IDX; | |
1363 | for (i = 0; i < num_wqes; i++) { | |
1364 | prod_qe = &cp->kwq[KWQ_PG(sw_prod)][KWQ_IDX(sw_prod)]; | |
1365 | memcpy(prod_qe, wqes[i], sizeof(struct kwqe)); | |
1366 | prod++; | |
1367 | sw_prod = prod & MAX_KWQ_IDX; | |
1368 | } | |
1369 | cp->kwq_prod_idx = prod; | |
1370 | ||
1371 | CNIC_WR16(dev, cp->kwq_io_addr, cp->kwq_prod_idx); | |
1372 | ||
1373 | spin_unlock_bh(&cp->cnic_ulp_lock); | |
1374 | return 0; | |
1375 | } | |
1376 | ||
71034ba8 MC |
1377 | static void *cnic_get_kwqe_16_data(struct cnic_local *cp, u32 l5_cid, |
1378 | union l5cm_specific_data *l5_data) | |
1379 | { | |
1380 | struct cnic_context *ctx = &cp->ctx_tbl[l5_cid]; | |
1381 | dma_addr_t map; | |
1382 | ||
1383 | map = ctx->kwqe_data_mapping; | |
1384 | l5_data->phy_address.lo = (u64) map & 0xffffffff; | |
1385 | l5_data->phy_address.hi = (u64) map >> 32; | |
1386 | return ctx->kwqe_data; | |
1387 | } | |
1388 | ||
1389 | static int cnic_submit_kwqe_16(struct cnic_dev *dev, u32 cmd, u32 cid, | |
1390 | u32 type, union l5cm_specific_data *l5_data) | |
1391 | { | |
1392 | struct cnic_local *cp = dev->cnic_priv; | |
5e65789f | 1393 | struct bnx2x *bp = netdev_priv(dev->netdev); |
71034ba8 MC |
1394 | struct l5cm_spe kwqe; |
1395 | struct kwqe_16 *kwq[1]; | |
68d7c1aa | 1396 | u16 type_16; |
71034ba8 MC |
1397 | int ret; |
1398 | ||
1399 | kwqe.hdr.conn_and_cmd_data = | |
1400 | cpu_to_le32(((cmd << SPE_HDR_CMD_ID_SHIFT) | | |
5e65789f | 1401 | BNX2X_HW_CID(bp, cid))); |
68d7c1aa MC |
1402 | |
1403 | type_16 = (type << SPE_HDR_CONN_TYPE_SHIFT) & SPE_HDR_CONN_TYPE; | |
a5b3c4ae | 1404 | type_16 |= (bp->pfid << SPE_HDR_FUNCTION_ID_SHIFT) & |
68d7c1aa MC |
1405 | SPE_HDR_FUNCTION_ID; |
1406 | ||
1407 | kwqe.hdr.type = cpu_to_le16(type_16); | |
523224a3 | 1408 | kwqe.hdr.reserved1 = 0; |
71034ba8 MC |
1409 | kwqe.data.phy_address.lo = cpu_to_le32(l5_data->phy_address.lo); |
1410 | kwqe.data.phy_address.hi = cpu_to_le32(l5_data->phy_address.hi); | |
1411 | ||
1412 | kwq[0] = (struct kwqe_16 *) &kwqe; | |
1413 | ||
1414 | spin_lock_bh(&cp->cnic_ulp_lock); | |
1415 | ret = cp->ethdev->drv_submit_kwqes_16(dev->netdev, kwq, 1); | |
1416 | spin_unlock_bh(&cp->cnic_ulp_lock); | |
1417 | ||
1418 | if (ret == 1) | |
1419 | return 0; | |
1420 | ||
23021c21 | 1421 | return ret; |
71034ba8 MC |
1422 | } |
1423 | ||
1424 | static void cnic_reply_bnx2x_kcqes(struct cnic_dev *dev, int ulp_type, | |
1425 | struct kcqe *cqes[], u32 num_cqes) | |
1426 | { | |
1427 | struct cnic_local *cp = dev->cnic_priv; | |
1428 | struct cnic_ulp_ops *ulp_ops; | |
1429 | ||
1430 | rcu_read_lock(); | |
1431 | ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]); | |
1432 | if (likely(ulp_ops)) { | |
1433 | ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type], | |
1434 | cqes, num_cqes); | |
1435 | } | |
1436 | rcu_read_unlock(); | |
1437 | } | |
1438 | ||
b3bd2d65 EW |
1439 | static void cnic_bnx2x_set_tcp_options(struct cnic_dev *dev, int time_stamps, |
1440 | int en_tcp_dack) | |
1441 | { | |
b3bd2d65 EW |
1442 | struct bnx2x *bp = netdev_priv(dev->netdev); |
1443 | u8 xstorm_flags = XSTORM_L5CM_TCP_FLAGS_WND_SCL_EN; | |
1444 | u16 tstorm_flags = 0; | |
1445 | ||
1446 | if (time_stamps) { | |
1447 | xstorm_flags |= XSTORM_L5CM_TCP_FLAGS_TS_ENABLED; | |
1448 | tstorm_flags |= TSTORM_L5CM_TCP_FLAGS_TS_ENABLED; | |
1449 | } | |
1450 | if (en_tcp_dack) | |
1451 | tstorm_flags |= TSTORM_L5CM_TCP_FLAGS_DELAYED_ACK_EN; | |
1452 | ||
1453 | CNIC_WR8(dev, BAR_XSTRORM_INTMEM + | |
a5b3c4ae | 1454 | XSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(bp->pfid), xstorm_flags); |
b3bd2d65 EW |
1455 | |
1456 | CNIC_WR16(dev, BAR_TSTRORM_INTMEM + | |
a5b3c4ae | 1457 | TSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(bp->pfid), tstorm_flags); |
b3bd2d65 EW |
1458 | } |
1459 | ||
71034ba8 MC |
1460 | static int cnic_bnx2x_iscsi_init1(struct cnic_dev *dev, struct kwqe *kwqe) |
1461 | { | |
1462 | struct cnic_local *cp = dev->cnic_priv; | |
68c64d20 | 1463 | struct bnx2x *bp = netdev_priv(dev->netdev); |
71034ba8 | 1464 | struct iscsi_kwqe_init1 *req1 = (struct iscsi_kwqe_init1 *) kwqe; |
1420398d | 1465 | int hq_bds, pages; |
a5b3c4ae | 1466 | u32 pfid = bp->pfid; |
71034ba8 MC |
1467 | |
1468 | cp->num_iscsi_tasks = req1->num_tasks_per_conn; | |
1469 | cp->num_ccells = req1->num_ccells_per_conn; | |
1470 | cp->task_array_size = BNX2X_ISCSI_TASK_CONTEXT_SIZE * | |
1471 | cp->num_iscsi_tasks; | |
1472 | cp->r2tq_size = cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS * | |
1473 | BNX2X_ISCSI_R2TQE_SIZE; | |
1474 | cp->hq_size = cp->num_ccells * BNX2X_ISCSI_HQ_BD_SIZE; | |
be1fefc2 MC |
1475 | pages = CNIC_PAGE_ALIGN(cp->hq_size) / CNIC_PAGE_SIZE; |
1476 | hq_bds = pages * (CNIC_PAGE_SIZE / BNX2X_ISCSI_HQ_BD_SIZE); | |
71034ba8 MC |
1477 | cp->num_cqs = req1->num_cqs; |
1478 | ||
1479 | if (!dev->max_iscsi_conn) | |
1480 | return 0; | |
1481 | ||
1482 | /* init Tstorm RAM */ | |
1420398d | 1483 | CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_RQ_SIZE_OFFSET(pfid), |
71034ba8 | 1484 | req1->rq_num_wqes); |
1420398d | 1485 | CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid), |
be1fefc2 | 1486 | CNIC_PAGE_SIZE); |
71034ba8 | 1487 | CNIC_WR8(dev, BAR_TSTRORM_INTMEM + |
be1fefc2 | 1488 | TSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), CNIC_PAGE_BITS); |
71034ba8 | 1489 | CNIC_WR16(dev, BAR_TSTRORM_INTMEM + |
1420398d | 1490 | TSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid), |
71034ba8 MC |
1491 | req1->num_tasks_per_conn); |
1492 | ||
1493 | /* init Ustorm RAM */ | |
1494 | CNIC_WR16(dev, BAR_USTRORM_INTMEM + | |
1420398d | 1495 | USTORM_ISCSI_RQ_BUFFER_SIZE_OFFSET(pfid), |
71034ba8 | 1496 | req1->rq_buffer_size); |
1420398d | 1497 | CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_PAGE_SIZE_OFFSET(pfid), |
be1fefc2 | 1498 | CNIC_PAGE_SIZE); |
71034ba8 | 1499 | CNIC_WR8(dev, BAR_USTRORM_INTMEM + |
be1fefc2 | 1500 | USTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), CNIC_PAGE_BITS); |
71034ba8 | 1501 | CNIC_WR16(dev, BAR_USTRORM_INTMEM + |
1420398d | 1502 | USTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid), |
71034ba8 | 1503 | req1->num_tasks_per_conn); |
1420398d | 1504 | CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_RQ_SIZE_OFFSET(pfid), |
71034ba8 | 1505 | req1->rq_num_wqes); |
1420398d | 1506 | CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_CQ_SIZE_OFFSET(pfid), |
71034ba8 | 1507 | req1->cq_num_wqes); |
1420398d | 1508 | CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid), |
71034ba8 MC |
1509 | cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS); |
1510 | ||
1511 | /* init Xstorm RAM */ | |
1420398d | 1512 | CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid), |
be1fefc2 | 1513 | CNIC_PAGE_SIZE); |
71034ba8 | 1514 | CNIC_WR8(dev, BAR_XSTRORM_INTMEM + |
be1fefc2 | 1515 | XSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), CNIC_PAGE_BITS); |
71034ba8 | 1516 | CNIC_WR16(dev, BAR_XSTRORM_INTMEM + |
1420398d | 1517 | XSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid), |
71034ba8 | 1518 | req1->num_tasks_per_conn); |
1420398d | 1519 | CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_HQ_SIZE_OFFSET(pfid), |
71034ba8 | 1520 | hq_bds); |
1420398d | 1521 | CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_SQ_SIZE_OFFSET(pfid), |
71034ba8 | 1522 | req1->num_tasks_per_conn); |
1420398d | 1523 | CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid), |
71034ba8 MC |
1524 | cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS); |
1525 | ||
1526 | /* init Cstorm RAM */ | |
1420398d | 1527 | CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid), |
be1fefc2 | 1528 | CNIC_PAGE_SIZE); |
71034ba8 | 1529 | CNIC_WR8(dev, BAR_CSTRORM_INTMEM + |
be1fefc2 | 1530 | CSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), CNIC_PAGE_BITS); |
71034ba8 | 1531 | CNIC_WR16(dev, BAR_CSTRORM_INTMEM + |
1420398d | 1532 | CSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid), |
71034ba8 | 1533 | req1->num_tasks_per_conn); |
1420398d | 1534 | CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_CQ_SIZE_OFFSET(pfid), |
71034ba8 | 1535 | req1->cq_num_wqes); |
1420398d | 1536 | CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_HQ_SIZE_OFFSET(pfid), |
71034ba8 MC |
1537 | hq_bds); |
1538 | ||
b3bd2d65 EW |
1539 | cnic_bnx2x_set_tcp_options(dev, |
1540 | req1->flags & ISCSI_KWQE_INIT1_TIME_STAMPS_ENABLE, | |
1541 | req1->flags & ISCSI_KWQE_INIT1_DELAYED_ACK_ENABLE); | |
1542 | ||
71034ba8 MC |
1543 | return 0; |
1544 | } | |
1545 | ||
1546 | static int cnic_bnx2x_iscsi_init2(struct cnic_dev *dev, struct kwqe *kwqe) | |
1547 | { | |
1548 | struct iscsi_kwqe_init2 *req2 = (struct iscsi_kwqe_init2 *) kwqe; | |
68c64d20 | 1549 | struct bnx2x *bp = netdev_priv(dev->netdev); |
a5b3c4ae | 1550 | u32 pfid = bp->pfid; |
71034ba8 MC |
1551 | struct iscsi_kcqe kcqe; |
1552 | struct kcqe *cqes[1]; | |
1553 | ||
1554 | memset(&kcqe, 0, sizeof(kcqe)); | |
1555 | if (!dev->max_iscsi_conn) { | |
1556 | kcqe.completion_status = | |
1557 | ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED; | |
1558 | goto done; | |
1559 | } | |
1560 | ||
1561 | CNIC_WR(dev, BAR_TSTRORM_INTMEM + | |
1420398d | 1562 | TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]); |
71034ba8 | 1563 | CNIC_WR(dev, BAR_TSTRORM_INTMEM + |
1420398d | 1564 | TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4, |
71034ba8 MC |
1565 | req2->error_bit_map[1]); |
1566 | ||
1567 | CNIC_WR16(dev, BAR_USTRORM_INTMEM + | |
1420398d | 1568 | USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn); |
71034ba8 | 1569 | CNIC_WR(dev, BAR_USTRORM_INTMEM + |
1420398d | 1570 | USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]); |
71034ba8 | 1571 | CNIC_WR(dev, BAR_USTRORM_INTMEM + |
1420398d | 1572 | USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4, |
71034ba8 MC |
1573 | req2->error_bit_map[1]); |
1574 | ||
1575 | CNIC_WR16(dev, BAR_CSTRORM_INTMEM + | |
1420398d | 1576 | CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn); |
71034ba8 MC |
1577 | |
1578 | kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS; | |
1579 | ||
1580 | done: | |
1581 | kcqe.op_code = ISCSI_KCQE_OPCODE_INIT; | |
1582 | cqes[0] = (struct kcqe *) &kcqe; | |
1583 | cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1); | |
1584 | ||
1585 | return 0; | |
1586 | } | |
1587 | ||
1588 | static void cnic_free_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid) | |
1589 | { | |
1590 | struct cnic_local *cp = dev->cnic_priv; | |
1591 | struct cnic_context *ctx = &cp->ctx_tbl[l5_cid]; | |
1592 | ||
1593 | if (ctx->ulp_proto_id == CNIC_ULP_ISCSI) { | |
1594 | struct cnic_iscsi *iscsi = ctx->proto.iscsi; | |
1595 | ||
1596 | cnic_free_dma(dev, &iscsi->hq_info); | |
1597 | cnic_free_dma(dev, &iscsi->r2tq_info); | |
1598 | cnic_free_dma(dev, &iscsi->task_array_info); | |
e1928c86 MC |
1599 | cnic_free_id(&cp->cid_tbl, ctx->cid); |
1600 | } else { | |
1601 | cnic_free_id(&cp->fcoe_cid_tbl, ctx->cid); | |
71034ba8 | 1602 | } |
e1928c86 | 1603 | |
71034ba8 MC |
1604 | ctx->cid = 0; |
1605 | } | |
1606 | ||
1607 | static int cnic_alloc_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid) | |
1608 | { | |
1609 | u32 cid; | |
1610 | int ret, pages; | |
1611 | struct cnic_local *cp = dev->cnic_priv; | |
1612 | struct cnic_context *ctx = &cp->ctx_tbl[l5_cid]; | |
1613 | struct cnic_iscsi *iscsi = ctx->proto.iscsi; | |
1614 | ||
e1928c86 MC |
1615 | if (ctx->ulp_proto_id == CNIC_ULP_FCOE) { |
1616 | cid = cnic_alloc_new_id(&cp->fcoe_cid_tbl); | |
1617 | if (cid == -1) { | |
1618 | ret = -ENOMEM; | |
1619 | goto error; | |
1620 | } | |
1621 | ctx->cid = cid; | |
1622 | return 0; | |
1623 | } | |
1624 | ||
71034ba8 MC |
1625 | cid = cnic_alloc_new_id(&cp->cid_tbl); |
1626 | if (cid == -1) { | |
1627 | ret = -ENOMEM; | |
1628 | goto error; | |
1629 | } | |
1630 | ||
1631 | ctx->cid = cid; | |
be1fefc2 | 1632 | pages = CNIC_PAGE_ALIGN(cp->task_array_size) / CNIC_PAGE_SIZE; |
71034ba8 MC |
1633 | |
1634 | ret = cnic_alloc_dma(dev, &iscsi->task_array_info, pages, 1); | |
1635 | if (ret) | |
1636 | goto error; | |
1637 | ||
be1fefc2 | 1638 | pages = CNIC_PAGE_ALIGN(cp->r2tq_size) / CNIC_PAGE_SIZE; |
71034ba8 MC |
1639 | ret = cnic_alloc_dma(dev, &iscsi->r2tq_info, pages, 1); |
1640 | if (ret) | |
1641 | goto error; | |
1642 | ||
be1fefc2 | 1643 | pages = CNIC_PAGE_ALIGN(cp->hq_size) / CNIC_PAGE_SIZE; |
71034ba8 MC |
1644 | ret = cnic_alloc_dma(dev, &iscsi->hq_info, pages, 1); |
1645 | if (ret) | |
1646 | goto error; | |
1647 | ||
1648 | return 0; | |
1649 | ||
1650 | error: | |
1651 | cnic_free_bnx2x_conn_resc(dev, l5_cid); | |
1652 | return ret; | |
1653 | } | |
1654 | ||
1655 | static void *cnic_get_bnx2x_ctx(struct cnic_dev *dev, u32 cid, int init, | |
1656 | struct regpair *ctx_addr) | |
1657 | { | |
1658 | struct cnic_local *cp = dev->cnic_priv; | |
1659 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
1660 | int blk = (cid - ethdev->starting_cid) / cp->cids_per_blk; | |
1661 | int off = (cid - ethdev->starting_cid) % cp->cids_per_blk; | |
1662 | unsigned long align_off = 0; | |
1663 | dma_addr_t ctx_map; | |
1664 | void *ctx; | |
1665 | ||
1666 | if (cp->ctx_align) { | |
1667 | unsigned long mask = cp->ctx_align - 1; | |
1668 | ||
1669 | if (cp->ctx_arr[blk].mapping & mask) | |
1670 | align_off = cp->ctx_align - | |
1671 | (cp->ctx_arr[blk].mapping & mask); | |
1672 | } | |
1673 | ctx_map = cp->ctx_arr[blk].mapping + align_off + | |
1674 | (off * BNX2X_CONTEXT_MEM_SIZE); | |
1675 | ctx = cp->ctx_arr[blk].ctx + align_off + | |
1676 | (off * BNX2X_CONTEXT_MEM_SIZE); | |
1677 | if (init) | |
1678 | memset(ctx, 0, BNX2X_CONTEXT_MEM_SIZE); | |
1679 | ||
1680 | ctx_addr->lo = ctx_map & 0xffffffff; | |
1681 | ctx_addr->hi = (u64) ctx_map >> 32; | |
1682 | return ctx; | |
1683 | } | |
1684 | ||
1685 | static int cnic_setup_bnx2x_ctx(struct cnic_dev *dev, struct kwqe *wqes[], | |
1686 | u32 num) | |
1687 | { | |
1688 | struct cnic_local *cp = dev->cnic_priv; | |
104a43ed | 1689 | struct bnx2x *bp = netdev_priv(dev->netdev); |
71034ba8 MC |
1690 | struct iscsi_kwqe_conn_offload1 *req1 = |
1691 | (struct iscsi_kwqe_conn_offload1 *) wqes[0]; | |
1692 | struct iscsi_kwqe_conn_offload2 *req2 = | |
1693 | (struct iscsi_kwqe_conn_offload2 *) wqes[1]; | |
1694 | struct iscsi_kwqe_conn_offload3 *req3; | |
1695 | struct cnic_context *ctx = &cp->ctx_tbl[req1->iscsi_conn_id]; | |
1696 | struct cnic_iscsi *iscsi = ctx->proto.iscsi; | |
1697 | u32 cid = ctx->cid; | |
5e65789f | 1698 | u32 hw_cid = BNX2X_HW_CID(bp, cid); |
71034ba8 MC |
1699 | struct iscsi_context *ictx; |
1700 | struct regpair context_addr; | |
1701 | int i, j, n = 2, n_max; | |
5bf945a8 | 1702 | u8 port = BP_PORT(bp); |
71034ba8 MC |
1703 | |
1704 | ctx->ctx_flags = 0; | |
1705 | if (!req2->num_additional_wqes) | |
1706 | return -EINVAL; | |
1707 | ||
1708 | n_max = req2->num_additional_wqes + 2; | |
1709 | ||
1710 | ictx = cnic_get_bnx2x_ctx(dev, cid, 1, &context_addr); | |
1711 | if (ictx == NULL) | |
1712 | return -ENOMEM; | |
1713 | ||
1714 | req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++]; | |
1715 | ||
1716 | ictx->xstorm_ag_context.hq_prod = 1; | |
1717 | ||
1718 | ictx->xstorm_st_context.iscsi.first_burst_length = | |
1719 | ISCSI_DEF_FIRST_BURST_LEN; | |
1720 | ictx->xstorm_st_context.iscsi.max_send_pdu_length = | |
1721 | ISCSI_DEF_MAX_RECV_SEG_LEN; | |
1722 | ictx->xstorm_st_context.iscsi.sq_pbl_base.lo = | |
1723 | req1->sq_page_table_addr_lo; | |
1724 | ictx->xstorm_st_context.iscsi.sq_pbl_base.hi = | |
1725 | req1->sq_page_table_addr_hi; | |
1726 | ictx->xstorm_st_context.iscsi.sq_curr_pbe.lo = req2->sq_first_pte.hi; | |
1727 | ictx->xstorm_st_context.iscsi.sq_curr_pbe.hi = req2->sq_first_pte.lo; | |
1728 | ictx->xstorm_st_context.iscsi.hq_pbl_base.lo = | |
1729 | iscsi->hq_info.pgtbl_map & 0xffffffff; | |
1730 | ictx->xstorm_st_context.iscsi.hq_pbl_base.hi = | |
1731 | (u64) iscsi->hq_info.pgtbl_map >> 32; | |
1732 | ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.lo = | |
1733 | iscsi->hq_info.pgtbl[0]; | |
1734 | ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.hi = | |
1735 | iscsi->hq_info.pgtbl[1]; | |
1736 | ictx->xstorm_st_context.iscsi.r2tq_pbl_base.lo = | |
1737 | iscsi->r2tq_info.pgtbl_map & 0xffffffff; | |
1738 | ictx->xstorm_st_context.iscsi.r2tq_pbl_base.hi = | |
1739 | (u64) iscsi->r2tq_info.pgtbl_map >> 32; | |
1740 | ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.lo = | |
1741 | iscsi->r2tq_info.pgtbl[0]; | |
1742 | ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.hi = | |
1743 | iscsi->r2tq_info.pgtbl[1]; | |
1744 | ictx->xstorm_st_context.iscsi.task_pbl_base.lo = | |
1745 | iscsi->task_array_info.pgtbl_map & 0xffffffff; | |
1746 | ictx->xstorm_st_context.iscsi.task_pbl_base.hi = | |
1747 | (u64) iscsi->task_array_info.pgtbl_map >> 32; | |
1748 | ictx->xstorm_st_context.iscsi.task_pbl_cache_idx = | |
1749 | BNX2X_ISCSI_PBL_NOT_CACHED; | |
1750 | ictx->xstorm_st_context.iscsi.flags.flags |= | |
1751 | XSTORM_ISCSI_CONTEXT_FLAGS_B_IMMEDIATE_DATA; | |
1752 | ictx->xstorm_st_context.iscsi.flags.flags |= | |
1753 | XSTORM_ISCSI_CONTEXT_FLAGS_B_INITIAL_R2T; | |
619c5cb6 VZ |
1754 | ictx->xstorm_st_context.common.ethernet.reserved_vlan_type = |
1755 | ETH_P_8021Q; | |
104a43ed | 1756 | if (BNX2X_CHIP_IS_E2_PLUS(bp) && |
5bf945a8 | 1757 | bp->common.chip_port_mode == CHIP_2_PORT_MODE) { |
619c5cb6 VZ |
1758 | |
1759 | port = 0; | |
1760 | } | |
1761 | ictx->xstorm_st_context.common.flags = | |
1762 | 1 << XSTORM_COMMON_CONTEXT_SECTION_PHYSQ_INITIALIZED_SHIFT; | |
1763 | ictx->xstorm_st_context.common.flags = | |
1764 | port << XSTORM_COMMON_CONTEXT_SECTION_PBF_PORT_SHIFT; | |
71034ba8 MC |
1765 | |
1766 | ictx->tstorm_st_context.iscsi.hdr_bytes_2_fetch = ISCSI_HEADER_SIZE; | |
1767 | /* TSTORM requires the base address of RQ DB & not PTE */ | |
1768 | ictx->tstorm_st_context.iscsi.rq_db_phy_addr.lo = | |
be1fefc2 | 1769 | req2->rq_page_table_addr_lo & CNIC_PAGE_MASK; |
71034ba8 MC |
1770 | ictx->tstorm_st_context.iscsi.rq_db_phy_addr.hi = |
1771 | req2->rq_page_table_addr_hi; | |
1772 | ictx->tstorm_st_context.iscsi.iscsi_conn_id = req1->iscsi_conn_id; | |
1773 | ictx->tstorm_st_context.tcp.cwnd = 0x5A8; | |
1774 | ictx->tstorm_st_context.tcp.flags2 |= | |
1775 | TSTORM_TCP_ST_CONTEXT_SECTION_DA_EN; | |
523224a3 DK |
1776 | ictx->tstorm_st_context.tcp.ooo_support_mode = |
1777 | TCP_TSTORM_OOO_DROP_AND_PROC_ACK; | |
71034ba8 | 1778 | |
523224a3 | 1779 | ictx->timers_context.flags |= TIMERS_BLOCK_CONTEXT_CONN_VALID_FLG; |
71034ba8 MC |
1780 | |
1781 | ictx->ustorm_st_context.ring.rq.pbl_base.lo = | |
15971c3c | 1782 | req2->rq_page_table_addr_lo; |
71034ba8 | 1783 | ictx->ustorm_st_context.ring.rq.pbl_base.hi = |
15971c3c | 1784 | req2->rq_page_table_addr_hi; |
71034ba8 MC |
1785 | ictx->ustorm_st_context.ring.rq.curr_pbe.lo = req3->qp_first_pte[0].hi; |
1786 | ictx->ustorm_st_context.ring.rq.curr_pbe.hi = req3->qp_first_pte[0].lo; | |
1787 | ictx->ustorm_st_context.ring.r2tq.pbl_base.lo = | |
1788 | iscsi->r2tq_info.pgtbl_map & 0xffffffff; | |
1789 | ictx->ustorm_st_context.ring.r2tq.pbl_base.hi = | |
1790 | (u64) iscsi->r2tq_info.pgtbl_map >> 32; | |
1791 | ictx->ustorm_st_context.ring.r2tq.curr_pbe.lo = | |
1792 | iscsi->r2tq_info.pgtbl[0]; | |
1793 | ictx->ustorm_st_context.ring.r2tq.curr_pbe.hi = | |
1794 | iscsi->r2tq_info.pgtbl[1]; | |
1795 | ictx->ustorm_st_context.ring.cq_pbl_base.lo = | |
1796 | req1->cq_page_table_addr_lo; | |
1797 | ictx->ustorm_st_context.ring.cq_pbl_base.hi = | |
1798 | req1->cq_page_table_addr_hi; | |
1799 | ictx->ustorm_st_context.ring.cq[0].cq_sn = ISCSI_INITIAL_SN; | |
1800 | ictx->ustorm_st_context.ring.cq[0].curr_pbe.lo = req2->cq_first_pte.hi; | |
1801 | ictx->ustorm_st_context.ring.cq[0].curr_pbe.hi = req2->cq_first_pte.lo; | |
1802 | ictx->ustorm_st_context.task_pbe_cache_index = | |
1803 | BNX2X_ISCSI_PBL_NOT_CACHED; | |
1804 | ictx->ustorm_st_context.task_pdu_cache_index = | |
1805 | BNX2X_ISCSI_PDU_HEADER_NOT_CACHED; | |
1806 | ||
1807 | for (i = 1, j = 1; i < cp->num_cqs; i++, j++) { | |
1808 | if (j == 3) { | |
1809 | if (n >= n_max) | |
1810 | break; | |
1811 | req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++]; | |
1812 | j = 0; | |
1813 | } | |
1814 | ictx->ustorm_st_context.ring.cq[i].cq_sn = ISCSI_INITIAL_SN; | |
1815 | ictx->ustorm_st_context.ring.cq[i].curr_pbe.lo = | |
1816 | req3->qp_first_pte[j].hi; | |
1817 | ictx->ustorm_st_context.ring.cq[i].curr_pbe.hi = | |
1818 | req3->qp_first_pte[j].lo; | |
1819 | } | |
1820 | ||
1821 | ictx->ustorm_st_context.task_pbl_base.lo = | |
1822 | iscsi->task_array_info.pgtbl_map & 0xffffffff; | |
1823 | ictx->ustorm_st_context.task_pbl_base.hi = | |
1824 | (u64) iscsi->task_array_info.pgtbl_map >> 32; | |
1825 | ictx->ustorm_st_context.tce_phy_addr.lo = | |
1826 | iscsi->task_array_info.pgtbl[0]; | |
1827 | ictx->ustorm_st_context.tce_phy_addr.hi = | |
1828 | iscsi->task_array_info.pgtbl[1]; | |
1829 | ictx->ustorm_st_context.iscsi_conn_id = req1->iscsi_conn_id; | |
1830 | ictx->ustorm_st_context.num_cqs = cp->num_cqs; | |
1831 | ictx->ustorm_st_context.negotiated_rx |= ISCSI_DEF_MAX_RECV_SEG_LEN; | |
1832 | ictx->ustorm_st_context.negotiated_rx_and_flags |= | |
1833 | ISCSI_DEF_MAX_BURST_LEN; | |
1834 | ictx->ustorm_st_context.negotiated_rx |= | |
1835 | ISCSI_DEFAULT_MAX_OUTSTANDING_R2T << | |
1836 | USTORM_ISCSI_ST_CONTEXT_MAX_OUTSTANDING_R2TS_SHIFT; | |
1837 | ||
1838 | ictx->cstorm_st_context.hq_pbl_base.lo = | |
1839 | iscsi->hq_info.pgtbl_map & 0xffffffff; | |
1840 | ictx->cstorm_st_context.hq_pbl_base.hi = | |
1841 | (u64) iscsi->hq_info.pgtbl_map >> 32; | |
1842 | ictx->cstorm_st_context.hq_curr_pbe.lo = iscsi->hq_info.pgtbl[0]; | |
1843 | ictx->cstorm_st_context.hq_curr_pbe.hi = iscsi->hq_info.pgtbl[1]; | |
1844 | ictx->cstorm_st_context.task_pbl_base.lo = | |
1845 | iscsi->task_array_info.pgtbl_map & 0xffffffff; | |
1846 | ictx->cstorm_st_context.task_pbl_base.hi = | |
1847 | (u64) iscsi->task_array_info.pgtbl_map >> 32; | |
1848 | /* CSTORM and USTORM initialization is different, CSTORM requires | |
1849 | * CQ DB base & not PTE addr */ | |
1850 | ictx->cstorm_st_context.cq_db_base.lo = | |
be1fefc2 | 1851 | req1->cq_page_table_addr_lo & CNIC_PAGE_MASK; |
71034ba8 MC |
1852 | ictx->cstorm_st_context.cq_db_base.hi = req1->cq_page_table_addr_hi; |
1853 | ictx->cstorm_st_context.iscsi_conn_id = req1->iscsi_conn_id; | |
1854 | ictx->cstorm_st_context.cq_proc_en_bit_map = (1 << cp->num_cqs) - 1; | |
1855 | for (i = 0; i < cp->num_cqs; i++) { | |
1856 | ictx->cstorm_st_context.cq_c_prod_sqn_arr.sqn[i] = | |
1857 | ISCSI_INITIAL_SN; | |
1858 | ictx->cstorm_st_context.cq_c_sqn_2_notify_arr.sqn[i] = | |
1859 | ISCSI_INITIAL_SN; | |
1860 | } | |
1861 | ||
1862 | ictx->xstorm_ag_context.cdu_reserved = | |
1863 | CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG, | |
1864 | ISCSI_CONNECTION_TYPE); | |
1865 | ictx->ustorm_ag_context.cdu_usage = | |
1866 | CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG, | |
1867 | ISCSI_CONNECTION_TYPE); | |
1868 | return 0; | |
1869 | ||
1870 | } | |
1871 | ||
1872 | static int cnic_bnx2x_iscsi_ofld1(struct cnic_dev *dev, struct kwqe *wqes[], | |
1873 | u32 num, int *work) | |
1874 | { | |
1875 | struct iscsi_kwqe_conn_offload1 *req1; | |
1876 | struct iscsi_kwqe_conn_offload2 *req2; | |
1877 | struct cnic_local *cp = dev->cnic_priv; | |
5e65789f | 1878 | struct bnx2x *bp = netdev_priv(dev->netdev); |
fdf24086 | 1879 | struct cnic_context *ctx; |
71034ba8 MC |
1880 | struct iscsi_kcqe kcqe; |
1881 | struct kcqe *cqes[1]; | |
1882 | u32 l5_cid; | |
fdf24086 | 1883 | int ret = 0; |
71034ba8 MC |
1884 | |
1885 | if (num < 2) { | |
1886 | *work = num; | |
1887 | return -EINVAL; | |
1888 | } | |
1889 | ||
1890 | req1 = (struct iscsi_kwqe_conn_offload1 *) wqes[0]; | |
1891 | req2 = (struct iscsi_kwqe_conn_offload2 *) wqes[1]; | |
1892 | if ((num - 2) < req2->num_additional_wqes) { | |
1893 | *work = num; | |
1894 | return -EINVAL; | |
1895 | } | |
779bb41d | 1896 | *work = 2 + req2->num_additional_wqes; |
71034ba8 MC |
1897 | |
1898 | l5_cid = req1->iscsi_conn_id; | |
1899 | if (l5_cid >= MAX_ISCSI_TBL_SZ) | |
1900 | return -EINVAL; | |
1901 | ||
1902 | memset(&kcqe, 0, sizeof(kcqe)); | |
1903 | kcqe.op_code = ISCSI_KCQE_OPCODE_OFFLOAD_CONN; | |
1904 | kcqe.iscsi_conn_id = l5_cid; | |
1905 | kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE; | |
1906 | ||
fdf24086 MC |
1907 | ctx = &cp->ctx_tbl[l5_cid]; |
1908 | if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) { | |
1909 | kcqe.completion_status = | |
1910 | ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY; | |
1911 | goto done; | |
1912 | } | |
1913 | ||
71034ba8 MC |
1914 | if (atomic_inc_return(&cp->iscsi_conn) > dev->max_iscsi_conn) { |
1915 | atomic_dec(&cp->iscsi_conn); | |
71034ba8 MC |
1916 | goto done; |
1917 | } | |
1918 | ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid); | |
1919 | if (ret) { | |
1920 | atomic_dec(&cp->iscsi_conn); | |
1921 | ret = 0; | |
1922 | goto done; | |
1923 | } | |
1924 | ret = cnic_setup_bnx2x_ctx(dev, wqes, num); | |
1925 | if (ret < 0) { | |
1926 | cnic_free_bnx2x_conn_resc(dev, l5_cid); | |
1927 | atomic_dec(&cp->iscsi_conn); | |
1928 | goto done; | |
1929 | } | |
1930 | ||
1931 | kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS; | |
5e65789f | 1932 | kcqe.iscsi_conn_context_id = BNX2X_HW_CID(bp, cp->ctx_tbl[l5_cid].cid); |
71034ba8 MC |
1933 | |
1934 | done: | |
1935 | cqes[0] = (struct kcqe *) &kcqe; | |
1936 | cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1); | |
23021c21 | 1937 | return 0; |
71034ba8 MC |
1938 | } |
1939 | ||
1940 | ||
1941 | static int cnic_bnx2x_iscsi_update(struct cnic_dev *dev, struct kwqe *kwqe) | |
1942 | { | |
1943 | struct cnic_local *cp = dev->cnic_priv; | |
1944 | struct iscsi_kwqe_conn_update *req = | |
1945 | (struct iscsi_kwqe_conn_update *) kwqe; | |
1946 | void *data; | |
1947 | union l5cm_specific_data l5_data; | |
1948 | u32 l5_cid, cid = BNX2X_SW_CID(req->context_id); | |
1949 | int ret; | |
1950 | ||
1951 | if (cnic_get_l5_cid(cp, cid, &l5_cid) != 0) | |
1952 | return -EINVAL; | |
1953 | ||
1954 | data = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data); | |
1955 | if (!data) | |
1956 | return -ENOMEM; | |
1957 | ||
1958 | memcpy(data, kwqe, sizeof(struct kwqe)); | |
1959 | ||
1960 | ret = cnic_submit_kwqe_16(dev, ISCSI_RAMROD_CMD_ID_UPDATE_CONN, | |
1961 | req->context_id, ISCSI_CONNECTION_TYPE, &l5_data); | |
1962 | return ret; | |
1963 | } | |
1964 | ||
a2c9e769 | 1965 | static int cnic_bnx2x_destroy_ramrod(struct cnic_dev *dev, u32 l5_cid) |
71034ba8 MC |
1966 | { |
1967 | struct cnic_local *cp = dev->cnic_priv; | |
5e65789f | 1968 | struct bnx2x *bp = netdev_priv(dev->netdev); |
71034ba8 | 1969 | struct cnic_context *ctx = &cp->ctx_tbl[l5_cid]; |
a2c9e769 MC |
1970 | union l5cm_specific_data l5_data; |
1971 | int ret; | |
68d7c1aa | 1972 | u32 hw_cid; |
71034ba8 | 1973 | |
71034ba8 MC |
1974 | init_waitqueue_head(&ctx->waitq); |
1975 | ctx->wait_cond = 0; | |
1976 | memset(&l5_data, 0, sizeof(l5_data)); | |
5e65789f | 1977 | hw_cid = BNX2X_HW_CID(bp, ctx->cid); |
523224a3 DK |
1978 | |
1979 | ret = cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL, | |
68d7c1aa | 1980 | hw_cid, NONE_CONNECTION_TYPE, &l5_data); |
523224a3 | 1981 | |
619c5cb6 | 1982 | if (ret == 0) { |
dcc7e3a6 | 1983 | wait_event_timeout(ctx->waitq, ctx->wait_cond, CNIC_RAMROD_TMO); |
619c5cb6 VZ |
1984 | if (unlikely(test_bit(CTX_FL_CID_ERROR, &ctx->ctx_flags))) |
1985 | return -EBUSY; | |
1986 | } | |
71034ba8 | 1987 | |
dcc7e3a6 | 1988 | return 0; |
a2c9e769 MC |
1989 | } |
1990 | ||
1991 | static int cnic_bnx2x_iscsi_destroy(struct cnic_dev *dev, struct kwqe *kwqe) | |
1992 | { | |
1993 | struct cnic_local *cp = dev->cnic_priv; | |
1994 | struct iscsi_kwqe_conn_destroy *req = | |
1995 | (struct iscsi_kwqe_conn_destroy *) kwqe; | |
1996 | u32 l5_cid = req->reserved0; | |
1997 | struct cnic_context *ctx = &cp->ctx_tbl[l5_cid]; | |
1998 | int ret = 0; | |
1999 | struct iscsi_kcqe kcqe; | |
2000 | struct kcqe *cqes[1]; | |
2001 | ||
2002 | if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) | |
2003 | goto skip_cfc_delete; | |
2004 | ||
fdf24086 MC |
2005 | if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) { |
2006 | unsigned long delta = ctx->timestamp + (2 * HZ) - jiffies; | |
2007 | ||
2008 | if (delta > (2 * HZ)) | |
2009 | delta = 0; | |
2010 | ||
2011 | set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags); | |
2012 | queue_delayed_work(cnic_wq, &cp->delete_task, delta); | |
2013 | goto destroy_reply; | |
2014 | } | |
a2c9e769 MC |
2015 | |
2016 | ret = cnic_bnx2x_destroy_ramrod(dev, l5_cid); | |
2017 | ||
71034ba8 MC |
2018 | skip_cfc_delete: |
2019 | cnic_free_bnx2x_conn_resc(dev, l5_cid); | |
2020 | ||
619c5cb6 VZ |
2021 | if (!ret) { |
2022 | atomic_dec(&cp->iscsi_conn); | |
2023 | clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags); | |
2024 | } | |
71034ba8 | 2025 | |
fdf24086 | 2026 | destroy_reply: |
71034ba8 MC |
2027 | memset(&kcqe, 0, sizeof(kcqe)); |
2028 | kcqe.op_code = ISCSI_KCQE_OPCODE_DESTROY_CONN; | |
2029 | kcqe.iscsi_conn_id = l5_cid; | |
2030 | kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS; | |
2031 | kcqe.iscsi_conn_context_id = req->context_id; | |
2032 | ||
2033 | cqes[0] = (struct kcqe *) &kcqe; | |
2034 | cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1); | |
2035 | ||
23021c21 | 2036 | return 0; |
71034ba8 MC |
2037 | } |
2038 | ||
2039 | static void cnic_init_storm_conn_bufs(struct cnic_dev *dev, | |
2040 | struct l4_kwq_connect_req1 *kwqe1, | |
2041 | struct l4_kwq_connect_req3 *kwqe3, | |
2042 | struct l5cm_active_conn_buffer *conn_buf) | |
2043 | { | |
2044 | struct l5cm_conn_addr_params *conn_addr = &conn_buf->conn_addr_buf; | |
2045 | struct l5cm_xstorm_conn_buffer *xstorm_buf = | |
2046 | &conn_buf->xstorm_conn_buffer; | |
2047 | struct l5cm_tstorm_conn_buffer *tstorm_buf = | |
2048 | &conn_buf->tstorm_conn_buffer; | |
2049 | struct regpair context_addr; | |
2050 | u32 cid = BNX2X_SW_CID(kwqe1->cid); | |
2051 | struct in6_addr src_ip, dst_ip; | |
2052 | int i; | |
2053 | u32 *addrp; | |
2054 | ||
2055 | addrp = (u32 *) &conn_addr->local_ip_addr; | |
2056 | for (i = 0; i < 4; i++, addrp++) | |
2057 | src_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp); | |
2058 | ||
2059 | addrp = (u32 *) &conn_addr->remote_ip_addr; | |
2060 | for (i = 0; i < 4; i++, addrp++) | |
2061 | dst_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp); | |
2062 | ||
2063 | cnic_get_bnx2x_ctx(dev, cid, 0, &context_addr); | |
2064 | ||
2065 | xstorm_buf->context_addr.hi = context_addr.hi; | |
2066 | xstorm_buf->context_addr.lo = context_addr.lo; | |
2067 | xstorm_buf->mss = 0xffff; | |
2068 | xstorm_buf->rcv_buf = kwqe3->rcv_buf; | |
2069 | if (kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE) | |
2070 | xstorm_buf->params |= L5CM_XSTORM_CONN_BUFFER_NAGLE_ENABLE; | |
2071 | xstorm_buf->pseudo_header_checksum = | |
2072 | swab16(~csum_ipv6_magic(&src_ip, &dst_ip, 0, IPPROTO_TCP, 0)); | |
2073 | ||
71034ba8 MC |
2074 | if (kwqe3->ka_timeout) { |
2075 | tstorm_buf->ka_enable = 1; | |
2076 | tstorm_buf->ka_timeout = kwqe3->ka_timeout; | |
2077 | tstorm_buf->ka_interval = kwqe3->ka_interval; | |
2078 | tstorm_buf->ka_max_probe_count = kwqe3->ka_max_probe_count; | |
2079 | } | |
71034ba8 MC |
2080 | tstorm_buf->max_rt_time = 0xffffffff; |
2081 | } | |
2082 | ||
2083 | static void cnic_init_bnx2x_mac(struct cnic_dev *dev) | |
2084 | { | |
68c64d20 | 2085 | struct bnx2x *bp = netdev_priv(dev->netdev); |
a5b3c4ae | 2086 | u32 pfid = bp->pfid; |
71034ba8 MC |
2087 | u8 *mac = dev->mac_addr; |
2088 | ||
2089 | CNIC_WR8(dev, BAR_XSTRORM_INTMEM + | |
1420398d | 2090 | XSTORM_ISCSI_LOCAL_MAC_ADDR0_OFFSET(pfid), mac[0]); |
71034ba8 | 2091 | CNIC_WR8(dev, BAR_XSTRORM_INTMEM + |
1420398d | 2092 | XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(pfid), mac[1]); |
71034ba8 | 2093 | CNIC_WR8(dev, BAR_XSTRORM_INTMEM + |
1420398d | 2094 | XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(pfid), mac[2]); |
71034ba8 | 2095 | CNIC_WR8(dev, BAR_XSTRORM_INTMEM + |
1420398d | 2096 | XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(pfid), mac[3]); |
71034ba8 | 2097 | CNIC_WR8(dev, BAR_XSTRORM_INTMEM + |
1420398d | 2098 | XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(pfid), mac[4]); |
71034ba8 | 2099 | CNIC_WR8(dev, BAR_XSTRORM_INTMEM + |
1420398d | 2100 | XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(pfid), mac[5]); |
71034ba8 MC |
2101 | |
2102 | CNIC_WR8(dev, BAR_TSTRORM_INTMEM + | |
1420398d | 2103 | TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[5]); |
71034ba8 | 2104 | CNIC_WR8(dev, BAR_TSTRORM_INTMEM + |
1420398d | 2105 | TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1, |
71034ba8 MC |
2106 | mac[4]); |
2107 | CNIC_WR8(dev, BAR_TSTRORM_INTMEM + | |
619c5cb6 | 2108 | TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfid), mac[3]); |
71034ba8 | 2109 | CNIC_WR8(dev, BAR_TSTRORM_INTMEM + |
619c5cb6 | 2110 | TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfid) + 1, |
71034ba8 MC |
2111 | mac[2]); |
2112 | CNIC_WR8(dev, BAR_TSTRORM_INTMEM + | |
619c5cb6 | 2113 | TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[1]); |
71034ba8 | 2114 | CNIC_WR8(dev, BAR_TSTRORM_INTMEM + |
619c5cb6 | 2115 | TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1, |
71034ba8 MC |
2116 | mac[0]); |
2117 | } | |
2118 | ||
71034ba8 MC |
2119 | static int cnic_bnx2x_connect(struct cnic_dev *dev, struct kwqe *wqes[], |
2120 | u32 num, int *work) | |
2121 | { | |
2122 | struct cnic_local *cp = dev->cnic_priv; | |
68c64d20 | 2123 | struct bnx2x *bp = netdev_priv(dev->netdev); |
71034ba8 MC |
2124 | struct l4_kwq_connect_req1 *kwqe1 = |
2125 | (struct l4_kwq_connect_req1 *) wqes[0]; | |
2126 | struct l4_kwq_connect_req3 *kwqe3; | |
2127 | struct l5cm_active_conn_buffer *conn_buf; | |
2128 | struct l5cm_conn_addr_params *conn_addr; | |
2129 | union l5cm_specific_data l5_data; | |
2130 | u32 l5_cid = kwqe1->pg_cid; | |
2131 | struct cnic_sock *csk = &cp->csk_tbl[l5_cid]; | |
2132 | struct cnic_context *ctx = &cp->ctx_tbl[l5_cid]; | |
2133 | int ret; | |
2134 | ||
2135 | if (num < 2) { | |
2136 | *work = num; | |
2137 | return -EINVAL; | |
2138 | } | |
2139 | ||
2140 | if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6) | |
2141 | *work = 3; | |
2142 | else | |
2143 | *work = 2; | |
2144 | ||
2145 | if (num < *work) { | |
2146 | *work = num; | |
2147 | return -EINVAL; | |
2148 | } | |
2149 | ||
2150 | if (sizeof(*conn_buf) > CNIC_KWQ16_DATA_SIZE) { | |
ddf79b20 | 2151 | netdev_err(dev->netdev, "conn_buf size too big\n"); |
71034ba8 MC |
2152 | return -ENOMEM; |
2153 | } | |
2154 | conn_buf = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data); | |
2155 | if (!conn_buf) | |
2156 | return -ENOMEM; | |
2157 | ||
2158 | memset(conn_buf, 0, sizeof(*conn_buf)); | |
2159 | ||
2160 | conn_addr = &conn_buf->conn_addr_buf; | |
2161 | conn_addr->remote_addr_0 = csk->ha[0]; | |
2162 | conn_addr->remote_addr_1 = csk->ha[1]; | |
2163 | conn_addr->remote_addr_2 = csk->ha[2]; | |
2164 | conn_addr->remote_addr_3 = csk->ha[3]; | |
2165 | conn_addr->remote_addr_4 = csk->ha[4]; | |
2166 | conn_addr->remote_addr_5 = csk->ha[5]; | |
2167 | ||
2168 | if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6) { | |
2169 | struct l4_kwq_connect_req2 *kwqe2 = | |
2170 | (struct l4_kwq_connect_req2 *) wqes[1]; | |
2171 | ||
2172 | conn_addr->local_ip_addr.ip_addr_hi_hi = kwqe2->src_ip_v6_4; | |
2173 | conn_addr->local_ip_addr.ip_addr_hi_lo = kwqe2->src_ip_v6_3; | |
2174 | conn_addr->local_ip_addr.ip_addr_lo_hi = kwqe2->src_ip_v6_2; | |
2175 | ||
2176 | conn_addr->remote_ip_addr.ip_addr_hi_hi = kwqe2->dst_ip_v6_4; | |
2177 | conn_addr->remote_ip_addr.ip_addr_hi_lo = kwqe2->dst_ip_v6_3; | |
2178 | conn_addr->remote_ip_addr.ip_addr_lo_hi = kwqe2->dst_ip_v6_2; | |
2179 | conn_addr->params |= L5CM_CONN_ADDR_PARAMS_IP_VERSION; | |
2180 | } | |
2181 | kwqe3 = (struct l4_kwq_connect_req3 *) wqes[*work - 1]; | |
2182 | ||
2183 | conn_addr->local_ip_addr.ip_addr_lo_lo = kwqe1->src_ip; | |
2184 | conn_addr->remote_ip_addr.ip_addr_lo_lo = kwqe1->dst_ip; | |
2185 | conn_addr->local_tcp_port = kwqe1->src_port; | |
2186 | conn_addr->remote_tcp_port = kwqe1->dst_port; | |
2187 | ||
2188 | conn_addr->pmtu = kwqe3->pmtu; | |
2189 | cnic_init_storm_conn_bufs(dev, kwqe1, kwqe3, conn_buf); | |
2190 | ||
2191 | CNIC_WR16(dev, BAR_XSTRORM_INTMEM + | |
a5b3c4ae | 2192 | XSTORM_ISCSI_LOCAL_VLAN_OFFSET(bp->pfid), csk->vlan_id); |
71034ba8 | 2193 | |
71034ba8 MC |
2194 | ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_TCP_CONNECT, |
2195 | kwqe1->cid, ISCSI_CONNECTION_TYPE, &l5_data); | |
2196 | if (!ret) | |
6e0dda0c | 2197 | set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags); |
71034ba8 MC |
2198 | |
2199 | return ret; | |
2200 | } | |
2201 | ||
2202 | static int cnic_bnx2x_close(struct cnic_dev *dev, struct kwqe *kwqe) | |
2203 | { | |
2204 | struct l4_kwq_close_req *req = (struct l4_kwq_close_req *) kwqe; | |
2205 | union l5cm_specific_data l5_data; | |
2206 | int ret; | |
2207 | ||
2208 | memset(&l5_data, 0, sizeof(l5_data)); | |
2209 | ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_CLOSE, | |
2210 | req->cid, ISCSI_CONNECTION_TYPE, &l5_data); | |
2211 | return ret; | |
2212 | } | |
2213 | ||
2214 | static int cnic_bnx2x_reset(struct cnic_dev *dev, struct kwqe *kwqe) | |
2215 | { | |
2216 | struct l4_kwq_reset_req *req = (struct l4_kwq_reset_req *) kwqe; | |
2217 | union l5cm_specific_data l5_data; | |
2218 | int ret; | |
2219 | ||
2220 | memset(&l5_data, 0, sizeof(l5_data)); | |
2221 | ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_ABORT, | |
2222 | req->cid, ISCSI_CONNECTION_TYPE, &l5_data); | |
2223 | return ret; | |
2224 | } | |
2225 | static int cnic_bnx2x_offload_pg(struct cnic_dev *dev, struct kwqe *kwqe) | |
2226 | { | |
2227 | struct l4_kwq_offload_pg *req = (struct l4_kwq_offload_pg *) kwqe; | |
2228 | struct l4_kcq kcqe; | |
2229 | struct kcqe *cqes[1]; | |
2230 | ||
2231 | memset(&kcqe, 0, sizeof(kcqe)); | |
2232 | kcqe.pg_host_opaque = req->host_opaque; | |
2233 | kcqe.pg_cid = req->host_opaque; | |
2234 | kcqe.op_code = L4_KCQE_OPCODE_VALUE_OFFLOAD_PG; | |
2235 | cqes[0] = (struct kcqe *) &kcqe; | |
2236 | cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1); | |
2237 | return 0; | |
2238 | } | |
2239 | ||
2240 | static int cnic_bnx2x_update_pg(struct cnic_dev *dev, struct kwqe *kwqe) | |
2241 | { | |
2242 | struct l4_kwq_update_pg *req = (struct l4_kwq_update_pg *) kwqe; | |
2243 | struct l4_kcq kcqe; | |
2244 | struct kcqe *cqes[1]; | |
2245 | ||
2246 | memset(&kcqe, 0, sizeof(kcqe)); | |
2247 | kcqe.pg_host_opaque = req->pg_host_opaque; | |
2248 | kcqe.pg_cid = req->pg_cid; | |
2249 | kcqe.op_code = L4_KCQE_OPCODE_VALUE_UPDATE_PG; | |
2250 | cqes[0] = (struct kcqe *) &kcqe; | |
2251 | cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1); | |
2252 | return 0; | |
2253 | } | |
2254 | ||
e1928c86 MC |
2255 | static int cnic_bnx2x_fcoe_stat(struct cnic_dev *dev, struct kwqe *kwqe) |
2256 | { | |
2257 | struct fcoe_kwqe_stat *req; | |
2258 | struct fcoe_stat_ramrod_params *fcoe_stat; | |
2259 | union l5cm_specific_data l5_data; | |
2260 | struct cnic_local *cp = dev->cnic_priv; | |
5e65789f | 2261 | struct bnx2x *bp = netdev_priv(dev->netdev); |
e1928c86 MC |
2262 | int ret; |
2263 | u32 cid; | |
2264 | ||
2265 | req = (struct fcoe_kwqe_stat *) kwqe; | |
5e65789f | 2266 | cid = BNX2X_HW_CID(bp, cp->fcoe_init_cid); |
e1928c86 MC |
2267 | |
2268 | fcoe_stat = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data); | |
2269 | if (!fcoe_stat) | |
2270 | return -ENOMEM; | |
2271 | ||
2272 | memset(fcoe_stat, 0, sizeof(*fcoe_stat)); | |
2273 | memcpy(&fcoe_stat->stat_kwqe, req, sizeof(*req)); | |
2274 | ||
619c5cb6 | 2275 | ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_STAT_FUNC, cid, |
e1928c86 MC |
2276 | FCOE_CONNECTION_TYPE, &l5_data); |
2277 | return ret; | |
2278 | } | |
2279 | ||
2280 | static int cnic_bnx2x_fcoe_init1(struct cnic_dev *dev, struct kwqe *wqes[], | |
2281 | u32 num, int *work) | |
2282 | { | |
2283 | int ret; | |
2284 | struct cnic_local *cp = dev->cnic_priv; | |
5e65789f | 2285 | struct bnx2x *bp = netdev_priv(dev->netdev); |
e1928c86 MC |
2286 | u32 cid; |
2287 | struct fcoe_init_ramrod_params *fcoe_init; | |
2288 | struct fcoe_kwqe_init1 *req1; | |
2289 | struct fcoe_kwqe_init2 *req2; | |
2290 | struct fcoe_kwqe_init3 *req3; | |
2291 | union l5cm_specific_data l5_data; | |
2292 | ||
2293 | if (num < 3) { | |
2294 | *work = num; | |
2295 | return -EINVAL; | |
2296 | } | |
2297 | req1 = (struct fcoe_kwqe_init1 *) wqes[0]; | |
2298 | req2 = (struct fcoe_kwqe_init2 *) wqes[1]; | |
2299 | req3 = (struct fcoe_kwqe_init3 *) wqes[2]; | |
2300 | if (req2->hdr.op_code != FCOE_KWQE_OPCODE_INIT2) { | |
2301 | *work = 1; | |
2302 | return -EINVAL; | |
2303 | } | |
2304 | if (req3->hdr.op_code != FCOE_KWQE_OPCODE_INIT3) { | |
2305 | *work = 2; | |
2306 | return -EINVAL; | |
2307 | } | |
2308 | ||
2309 | if (sizeof(*fcoe_init) > CNIC_KWQ16_DATA_SIZE) { | |
2310 | netdev_err(dev->netdev, "fcoe_init size too big\n"); | |
2311 | return -ENOMEM; | |
2312 | } | |
2313 | fcoe_init = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data); | |
2314 | if (!fcoe_init) | |
2315 | return -ENOMEM; | |
2316 | ||
2317 | memset(fcoe_init, 0, sizeof(*fcoe_init)); | |
2318 | memcpy(&fcoe_init->init_kwqe1, req1, sizeof(*req1)); | |
2319 | memcpy(&fcoe_init->init_kwqe2, req2, sizeof(*req2)); | |
2320 | memcpy(&fcoe_init->init_kwqe3, req3, sizeof(*req3)); | |
619c5cb6 VZ |
2321 | fcoe_init->eq_pbl_base.lo = cp->kcq2.dma.pgtbl_map & 0xffffffff; |
2322 | fcoe_init->eq_pbl_base.hi = (u64) cp->kcq2.dma.pgtbl_map >> 32; | |
2323 | fcoe_init->eq_pbl_size = cp->kcq2.dma.num_pages; | |
e1928c86 MC |
2324 | |
2325 | fcoe_init->sb_num = cp->status_blk_num; | |
2326 | fcoe_init->eq_prod = MAX_KCQ_IDX; | |
2327 | fcoe_init->sb_id = HC_INDEX_FCOE_EQ_CONS; | |
2328 | cp->kcq2.sw_prod_idx = 0; | |
2329 | ||
5e65789f | 2330 | cid = BNX2X_HW_CID(bp, cp->fcoe_init_cid); |
619c5cb6 | 2331 | ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_INIT_FUNC, cid, |
e1928c86 MC |
2332 | FCOE_CONNECTION_TYPE, &l5_data); |
2333 | *work = 3; | |
2334 | return ret; | |
2335 | } | |
2336 | ||
2337 | static int cnic_bnx2x_fcoe_ofld1(struct cnic_dev *dev, struct kwqe *wqes[], | |
2338 | u32 num, int *work) | |
2339 | { | |
2340 | int ret = 0; | |
2341 | u32 cid = -1, l5_cid; | |
2342 | struct cnic_local *cp = dev->cnic_priv; | |
5e65789f | 2343 | struct bnx2x *bp = netdev_priv(dev->netdev); |
e1928c86 MC |
2344 | struct fcoe_kwqe_conn_offload1 *req1; |
2345 | struct fcoe_kwqe_conn_offload2 *req2; | |
2346 | struct fcoe_kwqe_conn_offload3 *req3; | |
2347 | struct fcoe_kwqe_conn_offload4 *req4; | |
2348 | struct fcoe_conn_offload_ramrod_params *fcoe_offload; | |
2349 | struct cnic_context *ctx; | |
2350 | struct fcoe_context *fctx; | |
2351 | struct regpair ctx_addr; | |
2352 | union l5cm_specific_data l5_data; | |
2353 | struct fcoe_kcqe kcqe; | |
2354 | struct kcqe *cqes[1]; | |
2355 | ||
2356 | if (num < 4) { | |
2357 | *work = num; | |
2358 | return -EINVAL; | |
2359 | } | |
2360 | req1 = (struct fcoe_kwqe_conn_offload1 *) wqes[0]; | |
2361 | req2 = (struct fcoe_kwqe_conn_offload2 *) wqes[1]; | |
2362 | req3 = (struct fcoe_kwqe_conn_offload3 *) wqes[2]; | |
2363 | req4 = (struct fcoe_kwqe_conn_offload4 *) wqes[3]; | |
2364 | ||
2365 | *work = 4; | |
2366 | ||
2367 | l5_cid = req1->fcoe_conn_id; | |
dc219a2e | 2368 | if (l5_cid >= dev->max_fcoe_conn) |
e1928c86 MC |
2369 | goto err_reply; |
2370 | ||
2371 | l5_cid += BNX2X_FCOE_L5_CID_BASE; | |
2372 | ||
2373 | ctx = &cp->ctx_tbl[l5_cid]; | |
2374 | if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) | |
2375 | goto err_reply; | |
2376 | ||
2377 | ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid); | |
2378 | if (ret) { | |
2379 | ret = 0; | |
2380 | goto err_reply; | |
2381 | } | |
2382 | cid = ctx->cid; | |
2383 | ||
2384 | fctx = cnic_get_bnx2x_ctx(dev, cid, 1, &ctx_addr); | |
2385 | if (fctx) { | |
5e65789f | 2386 | u32 hw_cid = BNX2X_HW_CID(bp, cid); |
e1928c86 MC |
2387 | u32 val; |
2388 | ||
2389 | val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG, | |
2390 | FCOE_CONNECTION_TYPE); | |
2391 | fctx->xstorm_ag_context.cdu_reserved = val; | |
2392 | val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG, | |
2393 | FCOE_CONNECTION_TYPE); | |
2394 | fctx->ustorm_ag_context.cdu_usage = val; | |
2395 | } | |
2396 | if (sizeof(*fcoe_offload) > CNIC_KWQ16_DATA_SIZE) { | |
2397 | netdev_err(dev->netdev, "fcoe_offload size too big\n"); | |
2398 | goto err_reply; | |
2399 | } | |
2400 | fcoe_offload = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data); | |
2401 | if (!fcoe_offload) | |
2402 | goto err_reply; | |
2403 | ||
2404 | memset(fcoe_offload, 0, sizeof(*fcoe_offload)); | |
2405 | memcpy(&fcoe_offload->offload_kwqe1, req1, sizeof(*req1)); | |
2406 | memcpy(&fcoe_offload->offload_kwqe2, req2, sizeof(*req2)); | |
2407 | memcpy(&fcoe_offload->offload_kwqe3, req3, sizeof(*req3)); | |
2408 | memcpy(&fcoe_offload->offload_kwqe4, req4, sizeof(*req4)); | |
2409 | ||
5e65789f | 2410 | cid = BNX2X_HW_CID(bp, cid); |
e1928c86 MC |
2411 | ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_OFFLOAD_CONN, cid, |
2412 | FCOE_CONNECTION_TYPE, &l5_data); | |
2413 | if (!ret) | |
2414 | set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags); | |
2415 | ||
2416 | return ret; | |
2417 | ||
2418 | err_reply: | |
2419 | if (cid != -1) | |
2420 | cnic_free_bnx2x_conn_resc(dev, l5_cid); | |
2421 | ||
2422 | memset(&kcqe, 0, sizeof(kcqe)); | |
2423 | kcqe.op_code = FCOE_KCQE_OPCODE_OFFLOAD_CONN; | |
2424 | kcqe.fcoe_conn_id = req1->fcoe_conn_id; | |
2425 | kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE; | |
2426 | ||
2427 | cqes[0] = (struct kcqe *) &kcqe; | |
2428 | cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1); | |
2429 | return ret; | |
2430 | } | |
2431 | ||
2432 | static int cnic_bnx2x_fcoe_enable(struct cnic_dev *dev, struct kwqe *kwqe) | |
2433 | { | |
2434 | struct fcoe_kwqe_conn_enable_disable *req; | |
2435 | struct fcoe_conn_enable_disable_ramrod_params *fcoe_enable; | |
2436 | union l5cm_specific_data l5_data; | |
2437 | int ret; | |
2438 | u32 cid, l5_cid; | |
2439 | struct cnic_local *cp = dev->cnic_priv; | |
2440 | ||
2441 | req = (struct fcoe_kwqe_conn_enable_disable *) kwqe; | |
2442 | cid = req->context_id; | |
2443 | l5_cid = req->conn_id + BNX2X_FCOE_L5_CID_BASE; | |
2444 | ||
2445 | if (sizeof(*fcoe_enable) > CNIC_KWQ16_DATA_SIZE) { | |
2446 | netdev_err(dev->netdev, "fcoe_enable size too big\n"); | |
2447 | return -ENOMEM; | |
2448 | } | |
2449 | fcoe_enable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data); | |
2450 | if (!fcoe_enable) | |
2451 | return -ENOMEM; | |
2452 | ||
2453 | memset(fcoe_enable, 0, sizeof(*fcoe_enable)); | |
2454 | memcpy(&fcoe_enable->enable_disable_kwqe, req, sizeof(*req)); | |
2455 | ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_ENABLE_CONN, cid, | |
2456 | FCOE_CONNECTION_TYPE, &l5_data); | |
2457 | return ret; | |
2458 | } | |
2459 | ||
2460 | static int cnic_bnx2x_fcoe_disable(struct cnic_dev *dev, struct kwqe *kwqe) | |
2461 | { | |
2462 | struct fcoe_kwqe_conn_enable_disable *req; | |
2463 | struct fcoe_conn_enable_disable_ramrod_params *fcoe_disable; | |
2464 | union l5cm_specific_data l5_data; | |
2465 | int ret; | |
2466 | u32 cid, l5_cid; | |
2467 | struct cnic_local *cp = dev->cnic_priv; | |
2468 | ||
2469 | req = (struct fcoe_kwqe_conn_enable_disable *) kwqe; | |
2470 | cid = req->context_id; | |
2471 | l5_cid = req->conn_id; | |
dc219a2e | 2472 | if (l5_cid >= dev->max_fcoe_conn) |
e1928c86 MC |
2473 | return -EINVAL; |
2474 | ||
2475 | l5_cid += BNX2X_FCOE_L5_CID_BASE; | |
2476 | ||
2477 | if (sizeof(*fcoe_disable) > CNIC_KWQ16_DATA_SIZE) { | |
2478 | netdev_err(dev->netdev, "fcoe_disable size too big\n"); | |
2479 | return -ENOMEM; | |
2480 | } | |
2481 | fcoe_disable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data); | |
2482 | if (!fcoe_disable) | |
2483 | return -ENOMEM; | |
2484 | ||
2485 | memset(fcoe_disable, 0, sizeof(*fcoe_disable)); | |
2486 | memcpy(&fcoe_disable->enable_disable_kwqe, req, sizeof(*req)); | |
2487 | ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DISABLE_CONN, cid, | |
2488 | FCOE_CONNECTION_TYPE, &l5_data); | |
2489 | return ret; | |
2490 | } | |
2491 | ||
2492 | static int cnic_bnx2x_fcoe_destroy(struct cnic_dev *dev, struct kwqe *kwqe) | |
2493 | { | |
2494 | struct fcoe_kwqe_conn_destroy *req; | |
2495 | union l5cm_specific_data l5_data; | |
2496 | int ret; | |
2497 | u32 cid, l5_cid; | |
2498 | struct cnic_local *cp = dev->cnic_priv; | |
2499 | struct cnic_context *ctx; | |
2500 | struct fcoe_kcqe kcqe; | |
2501 | struct kcqe *cqes[1]; | |
2502 | ||
2503 | req = (struct fcoe_kwqe_conn_destroy *) kwqe; | |
2504 | cid = req->context_id; | |
2505 | l5_cid = req->conn_id; | |
dc219a2e | 2506 | if (l5_cid >= dev->max_fcoe_conn) |
e1928c86 MC |
2507 | return -EINVAL; |
2508 | ||
2509 | l5_cid += BNX2X_FCOE_L5_CID_BASE; | |
2510 | ||
2511 | ctx = &cp->ctx_tbl[l5_cid]; | |
2512 | ||
2513 | init_waitqueue_head(&ctx->waitq); | |
2514 | ctx->wait_cond = 0; | |
2515 | ||
dcc7e3a6 MC |
2516 | memset(&kcqe, 0, sizeof(kcqe)); |
2517 | kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_ERROR; | |
e1928c86 MC |
2518 | memset(&l5_data, 0, sizeof(l5_data)); |
2519 | ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_TERMINATE_CONN, cid, | |
2520 | FCOE_CONNECTION_TYPE, &l5_data); | |
2521 | if (ret == 0) { | |
dcc7e3a6 MC |
2522 | wait_event_timeout(ctx->waitq, ctx->wait_cond, CNIC_RAMROD_TMO); |
2523 | if (ctx->wait_cond) | |
2524 | kcqe.completion_status = 0; | |
e1928c86 MC |
2525 | } |
2526 | ||
dcc7e3a6 MC |
2527 | set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags); |
2528 | queue_delayed_work(cnic_wq, &cp->delete_task, msecs_to_jiffies(2000)); | |
2529 | ||
e1928c86 MC |
2530 | kcqe.op_code = FCOE_KCQE_OPCODE_DESTROY_CONN; |
2531 | kcqe.fcoe_conn_id = req->conn_id; | |
2532 | kcqe.fcoe_conn_context_id = cid; | |
2533 | ||
2534 | cqes[0] = (struct kcqe *) &kcqe; | |
2535 | cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1); | |
2536 | return ret; | |
2537 | } | |
2538 | ||
74e49bbd MC |
2539 | static void cnic_bnx2x_delete_wait(struct cnic_dev *dev, u32 start_cid) |
2540 | { | |
2541 | struct cnic_local *cp = dev->cnic_priv; | |
2542 | u32 i; | |
2543 | ||
2544 | for (i = start_cid; i < cp->max_cid_space; i++) { | |
2545 | struct cnic_context *ctx = &cp->ctx_tbl[i]; | |
2546 | int j; | |
2547 | ||
2548 | while (test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags)) | |
2549 | msleep(10); | |
2550 | ||
2551 | for (j = 0; j < 5; j++) { | |
2552 | if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) | |
2553 | break; | |
2554 | msleep(20); | |
2555 | } | |
2556 | ||
2557 | if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) | |
2558 | netdev_warn(dev->netdev, "CID %x not deleted\n", | |
2559 | ctx->cid); | |
2560 | } | |
2561 | } | |
2562 | ||
e1928c86 MC |
2563 | static int cnic_bnx2x_fcoe_fw_destroy(struct cnic_dev *dev, struct kwqe *kwqe) |
2564 | { | |
2565 | struct fcoe_kwqe_destroy *req; | |
2566 | union l5cm_specific_data l5_data; | |
2567 | struct cnic_local *cp = dev->cnic_priv; | |
5e65789f | 2568 | struct bnx2x *bp = netdev_priv(dev->netdev); |
e1928c86 MC |
2569 | int ret; |
2570 | u32 cid; | |
2571 | ||
74e49bbd MC |
2572 | cnic_bnx2x_delete_wait(dev, MAX_ISCSI_TBL_SZ); |
2573 | ||
e1928c86 | 2574 | req = (struct fcoe_kwqe_destroy *) kwqe; |
5e65789f | 2575 | cid = BNX2X_HW_CID(bp, cp->fcoe_init_cid); |
e1928c86 MC |
2576 | |
2577 | memset(&l5_data, 0, sizeof(l5_data)); | |
619c5cb6 | 2578 | ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DESTROY_FUNC, cid, |
e1928c86 MC |
2579 | FCOE_CONNECTION_TYPE, &l5_data); |
2580 | return ret; | |
2581 | } | |
2582 | ||
23021c21 MC |
2583 | static void cnic_bnx2x_kwqe_err(struct cnic_dev *dev, struct kwqe *kwqe) |
2584 | { | |
2585 | struct cnic_local *cp = dev->cnic_priv; | |
2586 | struct kcqe kcqe; | |
2587 | struct kcqe *cqes[1]; | |
2588 | u32 cid; | |
2589 | u32 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag); | |
2590 | u32 layer_code = kwqe->kwqe_op_flag & KWQE_LAYER_MASK; | |
3238a9be | 2591 | u32 kcqe_op; |
23021c21 MC |
2592 | int ulp_type; |
2593 | ||
2594 | cid = kwqe->kwqe_info0; | |
2595 | memset(&kcqe, 0, sizeof(kcqe)); | |
2596 | ||
3238a9be MC |
2597 | if (layer_code == KWQE_FLAGS_LAYER_MASK_L5_FCOE) { |
2598 | u32 l5_cid = 0; | |
2599 | ||
2600 | ulp_type = CNIC_ULP_FCOE; | |
2601 | if (opcode == FCOE_KWQE_OPCODE_DISABLE_CONN) { | |
2602 | struct fcoe_kwqe_conn_enable_disable *req; | |
2603 | ||
2604 | req = (struct fcoe_kwqe_conn_enable_disable *) kwqe; | |
2605 | kcqe_op = FCOE_KCQE_OPCODE_DISABLE_CONN; | |
2606 | cid = req->context_id; | |
2607 | l5_cid = req->conn_id; | |
2608 | } else if (opcode == FCOE_KWQE_OPCODE_DESTROY) { | |
2609 | kcqe_op = FCOE_KCQE_OPCODE_DESTROY_FUNC; | |
2610 | } else { | |
2611 | return; | |
2612 | } | |
2613 | kcqe.kcqe_op_flag = kcqe_op << KCQE_FLAGS_OPCODE_SHIFT; | |
2614 | kcqe.kcqe_op_flag |= KCQE_FLAGS_LAYER_MASK_L5_FCOE; | |
8ec3e702 | 2615 | kcqe.kcqe_info1 = FCOE_KCQE_COMPLETION_STATUS_PARITY_ERROR; |
3238a9be MC |
2616 | kcqe.kcqe_info2 = cid; |
2617 | kcqe.kcqe_info0 = l5_cid; | |
2618 | ||
2619 | } else if (layer_code == KWQE_FLAGS_LAYER_MASK_L5_ISCSI) { | |
23021c21 MC |
2620 | ulp_type = CNIC_ULP_ISCSI; |
2621 | if (opcode == ISCSI_KWQE_OPCODE_UPDATE_CONN) | |
2622 | cid = kwqe->kwqe_info1; | |
2623 | ||
2624 | kcqe.kcqe_op_flag = (opcode + 0x10) << KCQE_FLAGS_OPCODE_SHIFT; | |
2625 | kcqe.kcqe_op_flag |= KCQE_FLAGS_LAYER_MASK_L5_ISCSI; | |
8ec3e702 | 2626 | kcqe.kcqe_info1 = ISCSI_KCQE_COMPLETION_STATUS_PARITY_ERR; |
23021c21 MC |
2627 | kcqe.kcqe_info2 = cid; |
2628 | cnic_get_l5_cid(cp, BNX2X_SW_CID(cid), &kcqe.kcqe_info0); | |
2629 | ||
2630 | } else if (layer_code == KWQE_FLAGS_LAYER_MASK_L4) { | |
2631 | struct l4_kcq *l4kcqe = (struct l4_kcq *) &kcqe; | |
23021c21 MC |
2632 | |
2633 | ulp_type = CNIC_ULP_L4; | |
2634 | if (opcode == L4_KWQE_OPCODE_VALUE_CONNECT1) | |
2635 | kcqe_op = L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE; | |
2636 | else if (opcode == L4_KWQE_OPCODE_VALUE_RESET) | |
2637 | kcqe_op = L4_KCQE_OPCODE_VALUE_RESET_COMP; | |
2638 | else if (opcode == L4_KWQE_OPCODE_VALUE_CLOSE) | |
2639 | kcqe_op = L4_KCQE_OPCODE_VALUE_CLOSE_COMP; | |
2640 | else | |
2641 | return; | |
2642 | ||
2643 | kcqe.kcqe_op_flag = (kcqe_op << KCQE_FLAGS_OPCODE_SHIFT) | | |
2644 | KCQE_FLAGS_LAYER_MASK_L4; | |
8ec3e702 | 2645 | l4kcqe->status = L4_KCQE_COMPLETION_STATUS_PARITY_ERROR; |
23021c21 MC |
2646 | l4kcqe->cid = cid; |
2647 | cnic_get_l5_cid(cp, BNX2X_SW_CID(cid), &l4kcqe->conn_id); | |
2648 | } else { | |
2649 | return; | |
2650 | } | |
2651 | ||
64699336 | 2652 | cqes[0] = &kcqe; |
23021c21 MC |
2653 | cnic_reply_bnx2x_kcqes(dev, ulp_type, cqes, 1); |
2654 | } | |
2655 | ||
e1928c86 MC |
2656 | static int cnic_submit_bnx2x_iscsi_kwqes(struct cnic_dev *dev, |
2657 | struct kwqe *wqes[], u32 num_wqes) | |
71034ba8 MC |
2658 | { |
2659 | int i, work, ret; | |
2660 | u32 opcode; | |
2661 | struct kwqe *kwqe; | |
2662 | ||
2663 | if (!test_bit(CNIC_F_CNIC_UP, &dev->flags)) | |
2664 | return -EAGAIN; /* bnx2 is down */ | |
2665 | ||
2666 | for (i = 0; i < num_wqes; ) { | |
2667 | kwqe = wqes[i]; | |
2668 | opcode = KWQE_OPCODE(kwqe->kwqe_op_flag); | |
2669 | work = 1; | |
2670 | ||
2671 | switch (opcode) { | |
2672 | case ISCSI_KWQE_OPCODE_INIT1: | |
2673 | ret = cnic_bnx2x_iscsi_init1(dev, kwqe); | |
2674 | break; | |
2675 | case ISCSI_KWQE_OPCODE_INIT2: | |
2676 | ret = cnic_bnx2x_iscsi_init2(dev, kwqe); | |
2677 | break; | |
2678 | case ISCSI_KWQE_OPCODE_OFFLOAD_CONN1: | |
2679 | ret = cnic_bnx2x_iscsi_ofld1(dev, &wqes[i], | |
2680 | num_wqes - i, &work); | |
2681 | break; | |
2682 | case ISCSI_KWQE_OPCODE_UPDATE_CONN: | |
2683 | ret = cnic_bnx2x_iscsi_update(dev, kwqe); | |
2684 | break; | |
2685 | case ISCSI_KWQE_OPCODE_DESTROY_CONN: | |
2686 | ret = cnic_bnx2x_iscsi_destroy(dev, kwqe); | |
2687 | break; | |
2688 | case L4_KWQE_OPCODE_VALUE_CONNECT1: | |
2689 | ret = cnic_bnx2x_connect(dev, &wqes[i], num_wqes - i, | |
2690 | &work); | |
2691 | break; | |
2692 | case L4_KWQE_OPCODE_VALUE_CLOSE: | |
2693 | ret = cnic_bnx2x_close(dev, kwqe); | |
2694 | break; | |
2695 | case L4_KWQE_OPCODE_VALUE_RESET: | |
2696 | ret = cnic_bnx2x_reset(dev, kwqe); | |
2697 | break; | |
2698 | case L4_KWQE_OPCODE_VALUE_OFFLOAD_PG: | |
2699 | ret = cnic_bnx2x_offload_pg(dev, kwqe); | |
2700 | break; | |
2701 | case L4_KWQE_OPCODE_VALUE_UPDATE_PG: | |
2702 | ret = cnic_bnx2x_update_pg(dev, kwqe); | |
2703 | break; | |
2704 | case L4_KWQE_OPCODE_VALUE_UPLOAD_PG: | |
2705 | ret = 0; | |
2706 | break; | |
2707 | default: | |
2708 | ret = 0; | |
ddf79b20 JP |
2709 | netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n", |
2710 | opcode); | |
71034ba8 MC |
2711 | break; |
2712 | } | |
23021c21 | 2713 | if (ret < 0) { |
ddf79b20 JP |
2714 | netdev_err(dev->netdev, "KWQE(0x%x) failed\n", |
2715 | opcode); | |
23021c21 MC |
2716 | |
2717 | /* Possibly bnx2x parity error, send completion | |
2718 | * to ulp drivers with error code to speed up | |
2719 | * cleanup and reset recovery. | |
2720 | */ | |
2721 | if (ret == -EIO || ret == -EAGAIN) | |
2722 | cnic_bnx2x_kwqe_err(dev, kwqe); | |
2723 | } | |
71034ba8 MC |
2724 | i += work; |
2725 | } | |
2726 | return 0; | |
2727 | } | |
2728 | ||
e1928c86 MC |
2729 | static int cnic_submit_bnx2x_fcoe_kwqes(struct cnic_dev *dev, |
2730 | struct kwqe *wqes[], u32 num_wqes) | |
2731 | { | |
104a43ed | 2732 | struct bnx2x *bp = netdev_priv(dev->netdev); |
e1928c86 MC |
2733 | int i, work, ret; |
2734 | u32 opcode; | |
2735 | struct kwqe *kwqe; | |
2736 | ||
2737 | if (!test_bit(CNIC_F_CNIC_UP, &dev->flags)) | |
2738 | return -EAGAIN; /* bnx2 is down */ | |
2739 | ||
104a43ed | 2740 | if (!BNX2X_CHIP_IS_E2_PLUS(bp)) |
e1928c86 MC |
2741 | return -EINVAL; |
2742 | ||
2743 | for (i = 0; i < num_wqes; ) { | |
2744 | kwqe = wqes[i]; | |
2745 | opcode = KWQE_OPCODE(kwqe->kwqe_op_flag); | |
2746 | work = 1; | |
2747 | ||
2748 | switch (opcode) { | |
2749 | case FCOE_KWQE_OPCODE_INIT1: | |
2750 | ret = cnic_bnx2x_fcoe_init1(dev, &wqes[i], | |
2751 | num_wqes - i, &work); | |
2752 | break; | |
2753 | case FCOE_KWQE_OPCODE_OFFLOAD_CONN1: | |
2754 | ret = cnic_bnx2x_fcoe_ofld1(dev, &wqes[i], | |
2755 | num_wqes - i, &work); | |
2756 | break; | |
2757 | case FCOE_KWQE_OPCODE_ENABLE_CONN: | |
2758 | ret = cnic_bnx2x_fcoe_enable(dev, kwqe); | |
2759 | break; | |
2760 | case FCOE_KWQE_OPCODE_DISABLE_CONN: | |
2761 | ret = cnic_bnx2x_fcoe_disable(dev, kwqe); | |
2762 | break; | |
2763 | case FCOE_KWQE_OPCODE_DESTROY_CONN: | |
2764 | ret = cnic_bnx2x_fcoe_destroy(dev, kwqe); | |
2765 | break; | |
2766 | case FCOE_KWQE_OPCODE_DESTROY: | |
2767 | ret = cnic_bnx2x_fcoe_fw_destroy(dev, kwqe); | |
2768 | break; | |
2769 | case FCOE_KWQE_OPCODE_STAT: | |
2770 | ret = cnic_bnx2x_fcoe_stat(dev, kwqe); | |
2771 | break; | |
2772 | default: | |
2773 | ret = 0; | |
2774 | netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n", | |
2775 | opcode); | |
2776 | break; | |
2777 | } | |
3238a9be | 2778 | if (ret < 0) { |
e1928c86 MC |
2779 | netdev_err(dev->netdev, "KWQE(0x%x) failed\n", |
2780 | opcode); | |
3238a9be MC |
2781 | |
2782 | /* Possibly bnx2x parity error, send completion | |
2783 | * to ulp drivers with error code to speed up | |
2784 | * cleanup and reset recovery. | |
2785 | */ | |
2786 | if (ret == -EIO || ret == -EAGAIN) | |
2787 | cnic_bnx2x_kwqe_err(dev, kwqe); | |
2788 | } | |
e1928c86 MC |
2789 | i += work; |
2790 | } | |
2791 | return 0; | |
2792 | } | |
2793 | ||
2794 | static int cnic_submit_bnx2x_kwqes(struct cnic_dev *dev, struct kwqe *wqes[], | |
2795 | u32 num_wqes) | |
2796 | { | |
2797 | int ret = -EINVAL; | |
2798 | u32 layer_code; | |
2799 | ||
2800 | if (!test_bit(CNIC_F_CNIC_UP, &dev->flags)) | |
2801 | return -EAGAIN; /* bnx2x is down */ | |
2802 | ||
2803 | if (!num_wqes) | |
2804 | return 0; | |
2805 | ||
2806 | layer_code = wqes[0]->kwqe_op_flag & KWQE_LAYER_MASK; | |
2807 | switch (layer_code) { | |
2808 | case KWQE_FLAGS_LAYER_MASK_L5_ISCSI: | |
2809 | case KWQE_FLAGS_LAYER_MASK_L4: | |
2810 | case KWQE_FLAGS_LAYER_MASK_L2: | |
2811 | ret = cnic_submit_bnx2x_iscsi_kwqes(dev, wqes, num_wqes); | |
2812 | break; | |
2813 | ||
2814 | case KWQE_FLAGS_LAYER_MASK_L5_FCOE: | |
2815 | ret = cnic_submit_bnx2x_fcoe_kwqes(dev, wqes, num_wqes); | |
2816 | break; | |
2817 | } | |
2818 | return ret; | |
2819 | } | |
2820 | ||
2821 | static inline u32 cnic_get_kcqe_layer_mask(u32 opflag) | |
2822 | { | |
2823 | if (unlikely(KCQE_OPCODE(opflag) == FCOE_RAMROD_CMD_ID_TERMINATE_CONN)) | |
2824 | return KCQE_FLAGS_LAYER_MASK_L4; | |
2825 | ||
2826 | return opflag & KCQE_FLAGS_LAYER_MASK; | |
2827 | } | |
2828 | ||
a4636960 MC |
2829 | static void service_kcqes(struct cnic_dev *dev, int num_cqes) |
2830 | { | |
2831 | struct cnic_local *cp = dev->cnic_priv; | |
c2bff63f | 2832 | int i, j, comp = 0; |
a4636960 MC |
2833 | |
2834 | i = 0; | |
2835 | j = 1; | |
2836 | while (num_cqes) { | |
2837 | struct cnic_ulp_ops *ulp_ops; | |
2838 | int ulp_type; | |
2839 | u32 kcqe_op_flag = cp->completed_kcq[i]->kcqe_op_flag; | |
e1928c86 | 2840 | u32 kcqe_layer = cnic_get_kcqe_layer_mask(kcqe_op_flag); |
a4636960 MC |
2841 | |
2842 | if (unlikely(kcqe_op_flag & KCQE_RAMROD_COMPLETION)) | |
c2bff63f | 2843 | comp++; |
a4636960 MC |
2844 | |
2845 | while (j < num_cqes) { | |
2846 | u32 next_op = cp->completed_kcq[i + j]->kcqe_op_flag; | |
2847 | ||
e1928c86 | 2848 | if (cnic_get_kcqe_layer_mask(next_op) != kcqe_layer) |
a4636960 MC |
2849 | break; |
2850 | ||
2851 | if (unlikely(next_op & KCQE_RAMROD_COMPLETION)) | |
c2bff63f | 2852 | comp++; |
a4636960 MC |
2853 | j++; |
2854 | } | |
2855 | ||
2856 | if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_RDMA) | |
2857 | ulp_type = CNIC_ULP_RDMA; | |
2858 | else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_ISCSI) | |
2859 | ulp_type = CNIC_ULP_ISCSI; | |
e1928c86 MC |
2860 | else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_FCOE) |
2861 | ulp_type = CNIC_ULP_FCOE; | |
a4636960 MC |
2862 | else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L4) |
2863 | ulp_type = CNIC_ULP_L4; | |
2864 | else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L2) | |
2865 | goto end; | |
2866 | else { | |
ddf79b20 JP |
2867 | netdev_err(dev->netdev, "Unknown type of KCQE(0x%x)\n", |
2868 | kcqe_op_flag); | |
a4636960 MC |
2869 | goto end; |
2870 | } | |
2871 | ||
2872 | rcu_read_lock(); | |
2873 | ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]); | |
2874 | if (likely(ulp_ops)) { | |
2875 | ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type], | |
2876 | cp->completed_kcq + i, j); | |
2877 | } | |
2878 | rcu_read_unlock(); | |
2879 | end: | |
2880 | num_cqes -= j; | |
2881 | i += j; | |
2882 | j = 1; | |
2883 | } | |
c2bff63f DK |
2884 | if (unlikely(comp)) |
2885 | cnic_spq_completion(dev, DRV_CTL_RET_L5_SPQ_CREDIT_CMD, comp); | |
a4636960 MC |
2886 | } |
2887 | ||
644b9d4f | 2888 | static int cnic_get_kcqes(struct cnic_dev *dev, struct kcq_info *info) |
a4636960 MC |
2889 | { |
2890 | struct cnic_local *cp = dev->cnic_priv; | |
644b9d4f | 2891 | u16 i, ri, hw_prod, last; |
a4636960 MC |
2892 | struct kcqe *kcqe; |
2893 | int kcqe_cnt = 0, last_cnt = 0; | |
2894 | ||
644b9d4f | 2895 | i = ri = last = info->sw_prod_idx; |
a4636960 | 2896 | ri &= MAX_KCQ_IDX; |
644b9d4f | 2897 | hw_prod = *info->hw_prod_idx_ptr; |
59e51373 | 2898 | hw_prod = info->hw_idx(hw_prod); |
a4636960 MC |
2899 | |
2900 | while ((i != hw_prod) && (kcqe_cnt < MAX_COMPLETED_KCQE)) { | |
644b9d4f | 2901 | kcqe = &info->kcq[KCQ_PG(ri)][KCQ_IDX(ri)]; |
a4636960 | 2902 | cp->completed_kcq[kcqe_cnt++] = kcqe; |
59e51373 | 2903 | i = info->next_idx(i); |
a4636960 MC |
2904 | ri = i & MAX_KCQ_IDX; |
2905 | if (likely(!(kcqe->kcqe_op_flag & KCQE_FLAGS_NEXT))) { | |
2906 | last_cnt = kcqe_cnt; | |
2907 | last = i; | |
2908 | } | |
2909 | } | |
2910 | ||
644b9d4f | 2911 | info->sw_prod_idx = last; |
a4636960 MC |
2912 | return last_cnt; |
2913 | } | |
2914 | ||
48f753d2 MC |
2915 | static int cnic_l2_completion(struct cnic_local *cp) |
2916 | { | |
2917 | u16 hw_cons, sw_cons; | |
cd801536 | 2918 | struct cnic_uio_dev *udev = cp->udev; |
48f753d2 | 2919 | union eth_rx_cqe *cqe, *cqe_ring = (union eth_rx_cqe *) |
be1fefc2 | 2920 | (udev->l2_ring + (2 * CNIC_PAGE_SIZE)); |
48f753d2 MC |
2921 | u32 cmd; |
2922 | int comp = 0; | |
2923 | ||
2924 | if (!test_bit(CNIC_F_BNX2X_CLASS, &cp->dev->flags)) | |
2925 | return 0; | |
2926 | ||
2927 | hw_cons = *cp->rx_cons_ptr; | |
2928 | if ((hw_cons & BNX2X_MAX_RCQ_DESC_CNT) == BNX2X_MAX_RCQ_DESC_CNT) | |
2929 | hw_cons++; | |
2930 | ||
2931 | sw_cons = cp->rx_cons; | |
2932 | while (sw_cons != hw_cons) { | |
2933 | u8 cqe_fp_flags; | |
2934 | ||
2935 | cqe = &cqe_ring[sw_cons & BNX2X_MAX_RCQ_DESC_CNT]; | |
2936 | cqe_fp_flags = cqe->fast_path_cqe.type_error_flags; | |
2937 | if (cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE) { | |
2938 | cmd = le32_to_cpu(cqe->ramrod_cqe.conn_and_cmd_data); | |
2939 | cmd >>= COMMON_RAMROD_ETH_RX_CQE_CMD_ID_SHIFT; | |
2940 | if (cmd == RAMROD_CMD_ID_ETH_CLIENT_SETUP || | |
2941 | cmd == RAMROD_CMD_ID_ETH_HALT) | |
2942 | comp++; | |
2943 | } | |
2944 | sw_cons = BNX2X_NEXT_RCQE(sw_cons); | |
2945 | } | |
2946 | return comp; | |
2947 | } | |
2948 | ||
86b53606 | 2949 | static void cnic_chk_pkt_rings(struct cnic_local *cp) |
a4636960 | 2950 | { |
541a7810 | 2951 | u16 rx_cons, tx_cons; |
48f753d2 | 2952 | int comp = 0; |
a4636960 | 2953 | |
541a7810 | 2954 | if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags)) |
66fee9ed MC |
2955 | return; |
2956 | ||
541a7810 MC |
2957 | rx_cons = *cp->rx_cons_ptr; |
2958 | tx_cons = *cp->tx_cons_ptr; | |
a4636960 | 2959 | if (cp->tx_cons != tx_cons || cp->rx_cons != rx_cons) { |
48f753d2 MC |
2960 | if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags)) |
2961 | comp = cnic_l2_completion(cp); | |
2962 | ||
a4636960 MC |
2963 | cp->tx_cons = tx_cons; |
2964 | cp->rx_cons = rx_cons; | |
71034ba8 | 2965 | |
cd801536 MC |
2966 | if (cp->udev) |
2967 | uio_event_notify(&cp->udev->cnic_uinfo); | |
a4636960 | 2968 | } |
48f753d2 MC |
2969 | if (comp) |
2970 | clear_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags); | |
a4636960 MC |
2971 | } |
2972 | ||
b177a5d5 | 2973 | static u32 cnic_service_bnx2_queues(struct cnic_dev *dev) |
a4636960 | 2974 | { |
a4636960 | 2975 | struct cnic_local *cp = dev->cnic_priv; |
b177a5d5 | 2976 | u32 status_idx = (u16) *cp->kcq1.status_idx_ptr; |
a4636960 MC |
2977 | int kcqe_cnt; |
2978 | ||
107c3f4d MC |
2979 | /* status block index must be read before reading other fields */ |
2980 | rmb(); | |
a4636960 MC |
2981 | cp->kwq_con_idx = *cp->kwq_con_idx_ptr; |
2982 | ||
644b9d4f | 2983 | while ((kcqe_cnt = cnic_get_kcqes(dev, &cp->kcq1))) { |
a4636960 MC |
2984 | |
2985 | service_kcqes(dev, kcqe_cnt); | |
2986 | ||
2987 | /* Tell compiler that status_blk fields can change. */ | |
2988 | barrier(); | |
93736656 MC |
2989 | status_idx = (u16) *cp->kcq1.status_idx_ptr; |
2990 | /* status block index must be read first */ | |
2991 | rmb(); | |
2992 | cp->kwq_con_idx = *cp->kwq_con_idx_ptr; | |
a4636960 MC |
2993 | } |
2994 | ||
644b9d4f | 2995 | CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx); |
a4636960 | 2996 | |
86b53606 | 2997 | cnic_chk_pkt_rings(cp); |
b177a5d5 | 2998 | |
a4636960 MC |
2999 | return status_idx; |
3000 | } | |
3001 | ||
b177a5d5 | 3002 | static int cnic_service_bnx2(void *data, void *status_blk) |
a4636960 | 3003 | { |
b177a5d5 | 3004 | struct cnic_dev *dev = data; |
a4636960 | 3005 | |
eaaa6e9c MC |
3006 | if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags))) { |
3007 | struct status_block *sblk = status_blk; | |
3008 | ||
3009 | return sblk->status_idx; | |
3010 | } | |
a4636960 | 3011 | |
b177a5d5 MC |
3012 | return cnic_service_bnx2_queues(dev); |
3013 | } | |
a4636960 | 3014 | |
b177a5d5 MC |
3015 | static void cnic_service_bnx2_msix(unsigned long data) |
3016 | { | |
3017 | struct cnic_dev *dev = (struct cnic_dev *) data; | |
3018 | struct cnic_local *cp = dev->cnic_priv; | |
a4636960 | 3019 | |
b177a5d5 | 3020 | cp->last_status_idx = cnic_service_bnx2_queues(dev); |
a4636960 | 3021 | |
a4636960 MC |
3022 | CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num | |
3023 | BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx); | |
3024 | } | |
3025 | ||
66fee9ed MC |
3026 | static void cnic_doirq(struct cnic_dev *dev) |
3027 | { | |
3028 | struct cnic_local *cp = dev->cnic_priv; | |
66fee9ed MC |
3029 | |
3030 | if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) { | |
eaaa6e9c MC |
3031 | u16 prod = cp->kcq1.sw_prod_idx & MAX_KCQ_IDX; |
3032 | ||
66fee9ed | 3033 | prefetch(cp->status_blk.gen); |
e6c28894 | 3034 | prefetch(&cp->kcq1.kcq[KCQ_PG(prod)][KCQ_IDX(prod)]); |
66fee9ed MC |
3035 | |
3036 | tasklet_schedule(&cp->cnic_irq_task); | |
3037 | } | |
3038 | } | |
3039 | ||
a4636960 MC |
3040 | static irqreturn_t cnic_irq(int irq, void *dev_instance) |
3041 | { | |
3042 | struct cnic_dev *dev = dev_instance; | |
3043 | struct cnic_local *cp = dev->cnic_priv; | |
a4636960 MC |
3044 | |
3045 | if (cp->ack_int) | |
3046 | cp->ack_int(dev); | |
3047 | ||
66fee9ed | 3048 | cnic_doirq(dev); |
a4636960 MC |
3049 | |
3050 | return IRQ_HANDLED; | |
3051 | } | |
3052 | ||
71034ba8 MC |
3053 | static inline void cnic_ack_bnx2x_int(struct cnic_dev *dev, u8 id, u8 storm, |
3054 | u16 index, u8 op, u8 update) | |
3055 | { | |
5bf945a8 MC |
3056 | struct bnx2x *bp = netdev_priv(dev->netdev); |
3057 | u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp) * 32 + | |
71034ba8 MC |
3058 | COMMAND_REG_INT_ACK); |
3059 | struct igu_ack_register igu_ack; | |
3060 | ||
3061 | igu_ack.status_block_index = index; | |
3062 | igu_ack.sb_id_and_flags = | |
3063 | ((id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) | | |
3064 | (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) | | |
3065 | (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) | | |
3066 | (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT)); | |
3067 | ||
3068 | CNIC_WR(dev, hc_addr, (*(u32 *)&igu_ack)); | |
3069 | } | |
3070 | ||
ee87a82a MC |
3071 | static void cnic_ack_igu_sb(struct cnic_dev *dev, u8 igu_sb_id, u8 segment, |
3072 | u16 index, u8 op, u8 update) | |
3073 | { | |
3074 | struct igu_regular cmd_data; | |
3075 | u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id) * 8; | |
3076 | ||
3077 | cmd_data.sb_id_and_flags = | |
3078 | (index << IGU_REGULAR_SB_INDEX_SHIFT) | | |
3079 | (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) | | |
3080 | (update << IGU_REGULAR_BUPDATE_SHIFT) | | |
3081 | (op << IGU_REGULAR_ENABLE_INT_SHIFT); | |
3082 | ||
3083 | ||
3084 | CNIC_WR(dev, igu_addr, cmd_data.sb_id_and_flags); | |
3085 | } | |
3086 | ||
71034ba8 MC |
3087 | static void cnic_ack_bnx2x_msix(struct cnic_dev *dev) |
3088 | { | |
3089 | struct cnic_local *cp = dev->cnic_priv; | |
3090 | ||
523224a3 | 3091 | cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, 0, |
71034ba8 MC |
3092 | IGU_INT_DISABLE, 0); |
3093 | } | |
3094 | ||
ee87a82a MC |
3095 | static void cnic_ack_bnx2x_e2_msix(struct cnic_dev *dev) |
3096 | { | |
3097 | struct cnic_local *cp = dev->cnic_priv; | |
3098 | ||
3099 | cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, 0, | |
3100 | IGU_INT_DISABLE, 0); | |
3101 | } | |
3102 | ||
8cc0e028 MC |
3103 | static void cnic_arm_bnx2x_msix(struct cnic_dev *dev, u32 idx) |
3104 | { | |
3105 | struct cnic_local *cp = dev->cnic_priv; | |
3106 | ||
3107 | cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, idx, | |
3108 | IGU_INT_ENABLE, 1); | |
3109 | } | |
3110 | ||
3111 | static void cnic_arm_bnx2x_e2_msix(struct cnic_dev *dev, u32 idx) | |
3112 | { | |
3113 | struct cnic_local *cp = dev->cnic_priv; | |
3114 | ||
3115 | cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, idx, | |
3116 | IGU_INT_ENABLE, 1); | |
3117 | } | |
3118 | ||
b177a5d5 | 3119 | static u32 cnic_service_bnx2x_kcq(struct cnic_dev *dev, struct kcq_info *info) |
71034ba8 | 3120 | { |
b177a5d5 | 3121 | u32 last_status = *info->status_idx_ptr; |
71034ba8 MC |
3122 | int kcqe_cnt; |
3123 | ||
107c3f4d MC |
3124 | /* status block index must be read before reading the KCQ */ |
3125 | rmb(); | |
b177a5d5 | 3126 | while ((kcqe_cnt = cnic_get_kcqes(dev, info))) { |
71034ba8 MC |
3127 | |
3128 | service_kcqes(dev, kcqe_cnt); | |
3129 | ||
3130 | /* Tell compiler that sblk fields can change. */ | |
3131 | barrier(); | |
71034ba8 | 3132 | |
b177a5d5 | 3133 | last_status = *info->status_idx_ptr; |
107c3f4d MC |
3134 | /* status block index must be read before reading the KCQ */ |
3135 | rmb(); | |
71034ba8 | 3136 | } |
b177a5d5 MC |
3137 | return last_status; |
3138 | } | |
3139 | ||
3140 | static void cnic_service_bnx2x_bh(unsigned long data) | |
3141 | { | |
3142 | struct cnic_dev *dev = (struct cnic_dev *) data; | |
3143 | struct cnic_local *cp = dev->cnic_priv; | |
48a30569 | 3144 | struct bnx2x *bp = netdev_priv(dev->netdev); |
0197b087 | 3145 | u32 status_idx, new_status_idx; |
b177a5d5 MC |
3146 | |
3147 | if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags))) | |
3148 | return; | |
3149 | ||
0197b087 MC |
3150 | while (1) { |
3151 | status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1); | |
71034ba8 | 3152 | |
0197b087 MC |
3153 | CNIC_WR16(dev, cp->kcq1.io_addr, |
3154 | cp->kcq1.sw_prod_idx + MAX_KCQ_IDX); | |
e21ba414 | 3155 | |
48a30569 | 3156 | if (!CNIC_SUPPORTS_FCOE(bp)) { |
8cc0e028 | 3157 | cp->arm_int(dev, status_idx); |
0197b087 MC |
3158 | break; |
3159 | } | |
3160 | ||
3161 | new_status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq2); | |
3162 | ||
3163 | if (new_status_idx != status_idx) | |
3164 | continue; | |
e21ba414 MC |
3165 | |
3166 | CNIC_WR16(dev, cp->kcq2.io_addr, cp->kcq2.sw_prod_idx + | |
3167 | MAX_KCQ_IDX); | |
3168 | ||
ee87a82a MC |
3169 | cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, |
3170 | status_idx, IGU_INT_ENABLE, 1); | |
0197b087 MC |
3171 | |
3172 | break; | |
e21ba414 | 3173 | } |
71034ba8 MC |
3174 | } |
3175 | ||
3176 | static int cnic_service_bnx2x(void *data, void *status_blk) | |
3177 | { | |
3178 | struct cnic_dev *dev = data; | |
3179 | struct cnic_local *cp = dev->cnic_priv; | |
71034ba8 | 3180 | |
66fee9ed MC |
3181 | if (!(cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)) |
3182 | cnic_doirq(dev); | |
71034ba8 | 3183 | |
66fee9ed | 3184 | cnic_chk_pkt_rings(cp); |
71034ba8 MC |
3185 | |
3186 | return 0; | |
3187 | } | |
3188 | ||
fab0dc89 | 3189 | static void cnic_ulp_stop_one(struct cnic_local *cp, int if_type) |
a4636960 | 3190 | { |
fab0dc89 | 3191 | struct cnic_ulp_ops *ulp_ops; |
6d7760a8 | 3192 | |
fab0dc89 DK |
3193 | if (if_type == CNIC_ULP_ISCSI) |
3194 | cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL); | |
a4636960 | 3195 | |
fab0dc89 DK |
3196 | mutex_lock(&cnic_lock); |
3197 | ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type], | |
3198 | lockdep_is_held(&cnic_lock)); | |
3199 | if (!ulp_ops) { | |
681dbd71 | 3200 | mutex_unlock(&cnic_lock); |
fab0dc89 DK |
3201 | return; |
3202 | } | |
3203 | set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]); | |
3204 | mutex_unlock(&cnic_lock); | |
a4636960 | 3205 | |
fab0dc89 DK |
3206 | if (test_and_clear_bit(ULP_F_START, &cp->ulp_flags[if_type])) |
3207 | ulp_ops->cnic_stop(cp->ulp_handle[if_type]); | |
681dbd71 | 3208 | |
fab0dc89 DK |
3209 | clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]); |
3210 | } | |
3211 | ||
3212 | static void cnic_ulp_stop(struct cnic_dev *dev) | |
3213 | { | |
3214 | struct cnic_local *cp = dev->cnic_priv; | |
3215 | int if_type; | |
3216 | ||
3217 | for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) | |
3218 | cnic_ulp_stop_one(cp, if_type); | |
a4636960 MC |
3219 | } |
3220 | ||
3221 | static void cnic_ulp_start(struct cnic_dev *dev) | |
3222 | { | |
3223 | struct cnic_local *cp = dev->cnic_priv; | |
3224 | int if_type; | |
3225 | ||
a4636960 MC |
3226 | for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) { |
3227 | struct cnic_ulp_ops *ulp_ops; | |
3228 | ||
681dbd71 | 3229 | mutex_lock(&cnic_lock); |
13707f9e ED |
3230 | ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type], |
3231 | lockdep_is_held(&cnic_lock)); | |
681dbd71 MC |
3232 | if (!ulp_ops || !ulp_ops->cnic_start) { |
3233 | mutex_unlock(&cnic_lock); | |
a4636960 | 3234 | continue; |
681dbd71 MC |
3235 | } |
3236 | set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]); | |
3237 | mutex_unlock(&cnic_lock); | |
a4636960 MC |
3238 | |
3239 | if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[if_type])) | |
3240 | ulp_ops->cnic_start(cp->ulp_handle[if_type]); | |
681dbd71 MC |
3241 | |
3242 | clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]); | |
a4636960 | 3243 | } |
a4636960 MC |
3244 | } |
3245 | ||
1d187b34 BW |
3246 | static int cnic_copy_ulp_stats(struct cnic_dev *dev, int ulp_type) |
3247 | { | |
3248 | struct cnic_local *cp = dev->cnic_priv; | |
3249 | struct cnic_ulp_ops *ulp_ops; | |
3250 | int rc; | |
3251 | ||
3252 | mutex_lock(&cnic_lock); | |
f7bd12d0 MC |
3253 | ulp_ops = rcu_dereference_protected(cp->ulp_ops[ulp_type], |
3254 | lockdep_is_held(&cnic_lock)); | |
1d187b34 BW |
3255 | if (ulp_ops && ulp_ops->cnic_get_stats) |
3256 | rc = ulp_ops->cnic_get_stats(cp->ulp_handle[ulp_type]); | |
3257 | else | |
3258 | rc = -ENODEV; | |
3259 | mutex_unlock(&cnic_lock); | |
3260 | return rc; | |
3261 | } | |
3262 | ||
a4636960 MC |
3263 | static int cnic_ctl(void *data, struct cnic_ctl_info *info) |
3264 | { | |
3265 | struct cnic_dev *dev = data; | |
1d187b34 | 3266 | int ulp_type = CNIC_ULP_ISCSI; |
a4636960 MC |
3267 | |
3268 | switch (info->cmd) { | |
3269 | case CNIC_CTL_STOP_CMD: | |
3270 | cnic_hold(dev); | |
a4636960 MC |
3271 | |
3272 | cnic_ulp_stop(dev); | |
3273 | cnic_stop_hw(dev); | |
3274 | ||
a4636960 MC |
3275 | cnic_put(dev); |
3276 | break; | |
3277 | case CNIC_CTL_START_CMD: | |
3278 | cnic_hold(dev); | |
a4636960 MC |
3279 | |
3280 | if (!cnic_start_hw(dev)) | |
3281 | cnic_ulp_start(dev); | |
3282 | ||
a4636960 MC |
3283 | cnic_put(dev); |
3284 | break; | |
fab0dc89 DK |
3285 | case CNIC_CTL_STOP_ISCSI_CMD: { |
3286 | struct cnic_local *cp = dev->cnic_priv; | |
3287 | set_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags); | |
3288 | queue_delayed_work(cnic_wq, &cp->delete_task, 0); | |
3289 | break; | |
3290 | } | |
71034ba8 | 3291 | case CNIC_CTL_COMPLETION_CMD: { |
619c5cb6 VZ |
3292 | struct cnic_ctl_completion *comp = &info->data.comp; |
3293 | u32 cid = BNX2X_SW_CID(comp->cid); | |
71034ba8 MC |
3294 | u32 l5_cid; |
3295 | struct cnic_local *cp = dev->cnic_priv; | |
3296 | ||
a2028b23 MC |
3297 | if (!test_bit(CNIC_F_CNIC_UP, &dev->flags)) |
3298 | break; | |
3299 | ||
71034ba8 MC |
3300 | if (cnic_get_l5_cid(cp, cid, &l5_cid) == 0) { |
3301 | struct cnic_context *ctx = &cp->ctx_tbl[l5_cid]; | |
3302 | ||
619c5cb6 VZ |
3303 | if (unlikely(comp->error)) { |
3304 | set_bit(CTX_FL_CID_ERROR, &ctx->ctx_flags); | |
3305 | netdev_err(dev->netdev, | |
3306 | "CID %x CFC delete comp error %x\n", | |
3307 | cid, comp->error); | |
3308 | } | |
3309 | ||
71034ba8 MC |
3310 | ctx->wait_cond = 1; |
3311 | wake_up(&ctx->waitq); | |
3312 | } | |
3313 | break; | |
3314 | } | |
1d187b34 BW |
3315 | case CNIC_CTL_FCOE_STATS_GET_CMD: |
3316 | ulp_type = CNIC_ULP_FCOE; | |
3317 | /* fall through */ | |
3318 | case CNIC_CTL_ISCSI_STATS_GET_CMD: | |
3319 | cnic_hold(dev); | |
3320 | cnic_copy_ulp_stats(dev, ulp_type); | |
3321 | cnic_put(dev); | |
3322 | break; | |
3323 | ||
a4636960 MC |
3324 | default: |
3325 | return -EINVAL; | |
3326 | } | |
3327 | return 0; | |
3328 | } | |
3329 | ||
3330 | static void cnic_ulp_init(struct cnic_dev *dev) | |
3331 | { | |
3332 | int i; | |
3333 | struct cnic_local *cp = dev->cnic_priv; | |
3334 | ||
a4636960 MC |
3335 | for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) { |
3336 | struct cnic_ulp_ops *ulp_ops; | |
3337 | ||
7fc1ece4 | 3338 | mutex_lock(&cnic_lock); |
13707f9e | 3339 | ulp_ops = cnic_ulp_tbl_prot(i); |
7fc1ece4 MC |
3340 | if (!ulp_ops || !ulp_ops->cnic_init) { |
3341 | mutex_unlock(&cnic_lock); | |
a4636960 | 3342 | continue; |
7fc1ece4 MC |
3343 | } |
3344 | ulp_get(ulp_ops); | |
3345 | mutex_unlock(&cnic_lock); | |
a4636960 MC |
3346 | |
3347 | if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[i])) | |
3348 | ulp_ops->cnic_init(dev); | |
3349 | ||
7fc1ece4 | 3350 | ulp_put(ulp_ops); |
a4636960 | 3351 | } |
a4636960 MC |
3352 | } |
3353 | ||
3354 | static void cnic_ulp_exit(struct cnic_dev *dev) | |
3355 | { | |
3356 | int i; | |
3357 | struct cnic_local *cp = dev->cnic_priv; | |
3358 | ||
a4636960 MC |
3359 | for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) { |
3360 | struct cnic_ulp_ops *ulp_ops; | |
3361 | ||
7fc1ece4 | 3362 | mutex_lock(&cnic_lock); |
13707f9e | 3363 | ulp_ops = cnic_ulp_tbl_prot(i); |
7fc1ece4 MC |
3364 | if (!ulp_ops || !ulp_ops->cnic_exit) { |
3365 | mutex_unlock(&cnic_lock); | |
a4636960 | 3366 | continue; |
7fc1ece4 MC |
3367 | } |
3368 | ulp_get(ulp_ops); | |
3369 | mutex_unlock(&cnic_lock); | |
a4636960 MC |
3370 | |
3371 | if (test_and_clear_bit(ULP_F_INIT, &cp->ulp_flags[i])) | |
3372 | ulp_ops->cnic_exit(dev); | |
3373 | ||
7fc1ece4 | 3374 | ulp_put(ulp_ops); |
a4636960 | 3375 | } |
a4636960 MC |
3376 | } |
3377 | ||
3378 | static int cnic_cm_offload_pg(struct cnic_sock *csk) | |
3379 | { | |
3380 | struct cnic_dev *dev = csk->dev; | |
3381 | struct l4_kwq_offload_pg *l4kwqe; | |
3382 | struct kwqe *wqes[1]; | |
3383 | ||
3384 | l4kwqe = (struct l4_kwq_offload_pg *) &csk->kwqe1; | |
3385 | memset(l4kwqe, 0, sizeof(*l4kwqe)); | |
3386 | wqes[0] = (struct kwqe *) l4kwqe; | |
3387 | ||
3388 | l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_OFFLOAD_PG; | |
3389 | l4kwqe->flags = | |
3390 | L4_LAYER_CODE << L4_KWQ_OFFLOAD_PG_LAYER_CODE_SHIFT; | |
3391 | l4kwqe->l2hdr_nbytes = ETH_HLEN; | |
3392 | ||
3393 | l4kwqe->da0 = csk->ha[0]; | |
3394 | l4kwqe->da1 = csk->ha[1]; | |
3395 | l4kwqe->da2 = csk->ha[2]; | |
3396 | l4kwqe->da3 = csk->ha[3]; | |
3397 | l4kwqe->da4 = csk->ha[4]; | |
3398 | l4kwqe->da5 = csk->ha[5]; | |
3399 | ||
3400 | l4kwqe->sa0 = dev->mac_addr[0]; | |
3401 | l4kwqe->sa1 = dev->mac_addr[1]; | |
3402 | l4kwqe->sa2 = dev->mac_addr[2]; | |
3403 | l4kwqe->sa3 = dev->mac_addr[3]; | |
3404 | l4kwqe->sa4 = dev->mac_addr[4]; | |
3405 | l4kwqe->sa5 = dev->mac_addr[5]; | |
3406 | ||
3407 | l4kwqe->etype = ETH_P_IP; | |
a9736c08 | 3408 | l4kwqe->ipid_start = DEF_IPID_START; |
a4636960 MC |
3409 | l4kwqe->host_opaque = csk->l5_cid; |
3410 | ||
3411 | if (csk->vlan_id) { | |
3412 | l4kwqe->pg_flags |= L4_KWQ_OFFLOAD_PG_VLAN_TAGGING; | |
3413 | l4kwqe->vlan_tag = csk->vlan_id; | |
3414 | l4kwqe->l2hdr_nbytes += 4; | |
3415 | } | |
3416 | ||
3417 | return dev->submit_kwqes(dev, wqes, 1); | |
3418 | } | |
3419 | ||
3420 | static int cnic_cm_update_pg(struct cnic_sock *csk) | |
3421 | { | |
3422 | struct cnic_dev *dev = csk->dev; | |
3423 | struct l4_kwq_update_pg *l4kwqe; | |
3424 | struct kwqe *wqes[1]; | |
3425 | ||
3426 | l4kwqe = (struct l4_kwq_update_pg *) &csk->kwqe1; | |
3427 | memset(l4kwqe, 0, sizeof(*l4kwqe)); | |
3428 | wqes[0] = (struct kwqe *) l4kwqe; | |
3429 | ||
3430 | l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPDATE_PG; | |
3431 | l4kwqe->flags = | |
3432 | L4_LAYER_CODE << L4_KWQ_UPDATE_PG_LAYER_CODE_SHIFT; | |
3433 | l4kwqe->pg_cid = csk->pg_cid; | |
3434 | ||
3435 | l4kwqe->da0 = csk->ha[0]; | |
3436 | l4kwqe->da1 = csk->ha[1]; | |
3437 | l4kwqe->da2 = csk->ha[2]; | |
3438 | l4kwqe->da3 = csk->ha[3]; | |
3439 | l4kwqe->da4 = csk->ha[4]; | |
3440 | l4kwqe->da5 = csk->ha[5]; | |
3441 | ||
3442 | l4kwqe->pg_host_opaque = csk->l5_cid; | |
3443 | l4kwqe->pg_valids = L4_KWQ_UPDATE_PG_VALIDS_DA; | |
3444 | ||
3445 | return dev->submit_kwqes(dev, wqes, 1); | |
3446 | } | |
3447 | ||
3448 | static int cnic_cm_upload_pg(struct cnic_sock *csk) | |
3449 | { | |
3450 | struct cnic_dev *dev = csk->dev; | |
3451 | struct l4_kwq_upload *l4kwqe; | |
3452 | struct kwqe *wqes[1]; | |
3453 | ||
3454 | l4kwqe = (struct l4_kwq_upload *) &csk->kwqe1; | |
3455 | memset(l4kwqe, 0, sizeof(*l4kwqe)); | |
3456 | wqes[0] = (struct kwqe *) l4kwqe; | |
3457 | ||
3458 | l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPLOAD_PG; | |
3459 | l4kwqe->flags = | |
3460 | L4_LAYER_CODE << L4_KWQ_UPLOAD_LAYER_CODE_SHIFT; | |
3461 | l4kwqe->cid = csk->pg_cid; | |
3462 | ||
3463 | return dev->submit_kwqes(dev, wqes, 1); | |
3464 | } | |
3465 | ||
3466 | static int cnic_cm_conn_req(struct cnic_sock *csk) | |
3467 | { | |
3468 | struct cnic_dev *dev = csk->dev; | |
3469 | struct l4_kwq_connect_req1 *l4kwqe1; | |
3470 | struct l4_kwq_connect_req2 *l4kwqe2; | |
3471 | struct l4_kwq_connect_req3 *l4kwqe3; | |
3472 | struct kwqe *wqes[3]; | |
3473 | u8 tcp_flags = 0; | |
3474 | int num_wqes = 2; | |
3475 | ||
3476 | l4kwqe1 = (struct l4_kwq_connect_req1 *) &csk->kwqe1; | |
3477 | l4kwqe2 = (struct l4_kwq_connect_req2 *) &csk->kwqe2; | |
3478 | l4kwqe3 = (struct l4_kwq_connect_req3 *) &csk->kwqe3; | |
3479 | memset(l4kwqe1, 0, sizeof(*l4kwqe1)); | |
3480 | memset(l4kwqe2, 0, sizeof(*l4kwqe2)); | |
3481 | memset(l4kwqe3, 0, sizeof(*l4kwqe3)); | |
3482 | ||
3483 | l4kwqe3->op_code = L4_KWQE_OPCODE_VALUE_CONNECT3; | |
3484 | l4kwqe3->flags = | |
3485 | L4_LAYER_CODE << L4_KWQ_CONNECT_REQ3_LAYER_CODE_SHIFT; | |
3486 | l4kwqe3->ka_timeout = csk->ka_timeout; | |
3487 | l4kwqe3->ka_interval = csk->ka_interval; | |
3488 | l4kwqe3->ka_max_probe_count = csk->ka_max_probe_count; | |
3489 | l4kwqe3->tos = csk->tos; | |
3490 | l4kwqe3->ttl = csk->ttl; | |
3491 | l4kwqe3->snd_seq_scale = csk->snd_seq_scale; | |
3492 | l4kwqe3->pmtu = csk->mtu; | |
3493 | l4kwqe3->rcv_buf = csk->rcv_buf; | |
3494 | l4kwqe3->snd_buf = csk->snd_buf; | |
3495 | l4kwqe3->seed = csk->seed; | |
3496 | ||
3497 | wqes[0] = (struct kwqe *) l4kwqe1; | |
3498 | if (test_bit(SK_F_IPV6, &csk->flags)) { | |
3499 | wqes[1] = (struct kwqe *) l4kwqe2; | |
3500 | wqes[2] = (struct kwqe *) l4kwqe3; | |
3501 | num_wqes = 3; | |
3502 | ||
3503 | l4kwqe1->conn_flags = L4_KWQ_CONNECT_REQ1_IP_V6; | |
3504 | l4kwqe2->op_code = L4_KWQE_OPCODE_VALUE_CONNECT2; | |
3505 | l4kwqe2->flags = | |
3506 | L4_KWQ_CONNECT_REQ2_LINKED_WITH_NEXT | | |
3507 | L4_LAYER_CODE << L4_KWQ_CONNECT_REQ2_LAYER_CODE_SHIFT; | |
3508 | l4kwqe2->src_ip_v6_2 = be32_to_cpu(csk->src_ip[1]); | |
3509 | l4kwqe2->src_ip_v6_3 = be32_to_cpu(csk->src_ip[2]); | |
3510 | l4kwqe2->src_ip_v6_4 = be32_to_cpu(csk->src_ip[3]); | |
3511 | l4kwqe2->dst_ip_v6_2 = be32_to_cpu(csk->dst_ip[1]); | |
3512 | l4kwqe2->dst_ip_v6_3 = be32_to_cpu(csk->dst_ip[2]); | |
3513 | l4kwqe2->dst_ip_v6_4 = be32_to_cpu(csk->dst_ip[3]); | |
3514 | l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct ipv6hdr) - | |
3515 | sizeof(struct tcphdr); | |
3516 | } else { | |
3517 | wqes[1] = (struct kwqe *) l4kwqe3; | |
3518 | l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct iphdr) - | |
3519 | sizeof(struct tcphdr); | |
3520 | } | |
3521 | ||
3522 | l4kwqe1->op_code = L4_KWQE_OPCODE_VALUE_CONNECT1; | |
3523 | l4kwqe1->flags = | |
3524 | (L4_LAYER_CODE << L4_KWQ_CONNECT_REQ1_LAYER_CODE_SHIFT) | | |
3525 | L4_KWQ_CONNECT_REQ3_LINKED_WITH_NEXT; | |
3526 | l4kwqe1->cid = csk->cid; | |
3527 | l4kwqe1->pg_cid = csk->pg_cid; | |
3528 | l4kwqe1->src_ip = be32_to_cpu(csk->src_ip[0]); | |
3529 | l4kwqe1->dst_ip = be32_to_cpu(csk->dst_ip[0]); | |
3530 | l4kwqe1->src_port = be16_to_cpu(csk->src_port); | |
3531 | l4kwqe1->dst_port = be16_to_cpu(csk->dst_port); | |
3532 | if (csk->tcp_flags & SK_TCP_NO_DELAY_ACK) | |
3533 | tcp_flags |= L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK; | |
3534 | if (csk->tcp_flags & SK_TCP_KEEP_ALIVE) | |
3535 | tcp_flags |= L4_KWQ_CONNECT_REQ1_KEEP_ALIVE; | |
3536 | if (csk->tcp_flags & SK_TCP_NAGLE) | |
3537 | tcp_flags |= L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE; | |
3538 | if (csk->tcp_flags & SK_TCP_TIMESTAMP) | |
3539 | tcp_flags |= L4_KWQ_CONNECT_REQ1_TIME_STAMP; | |
3540 | if (csk->tcp_flags & SK_TCP_SACK) | |
3541 | tcp_flags |= L4_KWQ_CONNECT_REQ1_SACK; | |
3542 | if (csk->tcp_flags & SK_TCP_SEG_SCALING) | |
3543 | tcp_flags |= L4_KWQ_CONNECT_REQ1_SEG_SCALING; | |
3544 | ||
3545 | l4kwqe1->tcp_flags = tcp_flags; | |
3546 | ||
3547 | return dev->submit_kwqes(dev, wqes, num_wqes); | |
3548 | } | |
3549 | ||
3550 | static int cnic_cm_close_req(struct cnic_sock *csk) | |
3551 | { | |
3552 | struct cnic_dev *dev = csk->dev; | |
3553 | struct l4_kwq_close_req *l4kwqe; | |
3554 | struct kwqe *wqes[1]; | |
3555 | ||
3556 | l4kwqe = (struct l4_kwq_close_req *) &csk->kwqe2; | |
3557 | memset(l4kwqe, 0, sizeof(*l4kwqe)); | |
3558 | wqes[0] = (struct kwqe *) l4kwqe; | |
3559 | ||
3560 | l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_CLOSE; | |
3561 | l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_CLOSE_REQ_LAYER_CODE_SHIFT; | |
3562 | l4kwqe->cid = csk->cid; | |
3563 | ||
3564 | return dev->submit_kwqes(dev, wqes, 1); | |
3565 | } | |
3566 | ||
3567 | static int cnic_cm_abort_req(struct cnic_sock *csk) | |
3568 | { | |
3569 | struct cnic_dev *dev = csk->dev; | |
3570 | struct l4_kwq_reset_req *l4kwqe; | |
3571 | struct kwqe *wqes[1]; | |
3572 | ||
3573 | l4kwqe = (struct l4_kwq_reset_req *) &csk->kwqe2; | |
3574 | memset(l4kwqe, 0, sizeof(*l4kwqe)); | |
3575 | wqes[0] = (struct kwqe *) l4kwqe; | |
3576 | ||
3577 | l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_RESET; | |
3578 | l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_RESET_REQ_LAYER_CODE_SHIFT; | |
3579 | l4kwqe->cid = csk->cid; | |
3580 | ||
3581 | return dev->submit_kwqes(dev, wqes, 1); | |
3582 | } | |
3583 | ||
3584 | static int cnic_cm_create(struct cnic_dev *dev, int ulp_type, u32 cid, | |
3585 | u32 l5_cid, struct cnic_sock **csk, void *context) | |
3586 | { | |
3587 | struct cnic_local *cp = dev->cnic_priv; | |
3588 | struct cnic_sock *csk1; | |
3589 | ||
3590 | if (l5_cid >= MAX_CM_SK_TBL_SZ) | |
3591 | return -EINVAL; | |
3592 | ||
fdf24086 MC |
3593 | if (cp->ctx_tbl) { |
3594 | struct cnic_context *ctx = &cp->ctx_tbl[l5_cid]; | |
3595 | ||
3596 | if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) | |
3597 | return -EAGAIN; | |
3598 | } | |
3599 | ||
a4636960 MC |
3600 | csk1 = &cp->csk_tbl[l5_cid]; |
3601 | if (atomic_read(&csk1->ref_count)) | |
3602 | return -EAGAIN; | |
3603 | ||
3604 | if (test_and_set_bit(SK_F_INUSE, &csk1->flags)) | |
3605 | return -EBUSY; | |
3606 | ||
3607 | csk1->dev = dev; | |
3608 | csk1->cid = cid; | |
3609 | csk1->l5_cid = l5_cid; | |
3610 | csk1->ulp_type = ulp_type; | |
3611 | csk1->context = context; | |
3612 | ||
3613 | csk1->ka_timeout = DEF_KA_TIMEOUT; | |
3614 | csk1->ka_interval = DEF_KA_INTERVAL; | |
3615 | csk1->ka_max_probe_count = DEF_KA_MAX_PROBE_COUNT; | |
3616 | csk1->tos = DEF_TOS; | |
3617 | csk1->ttl = DEF_TTL; | |
3618 | csk1->snd_seq_scale = DEF_SND_SEQ_SCALE; | |
3619 | csk1->rcv_buf = DEF_RCV_BUF; | |
3620 | csk1->snd_buf = DEF_SND_BUF; | |
3621 | csk1->seed = DEF_SEED; | |
6cdcdbba | 3622 | csk1->tcp_flags = 0; |
a4636960 MC |
3623 | |
3624 | *csk = csk1; | |
3625 | return 0; | |
3626 | } | |
3627 | ||
3628 | static void cnic_cm_cleanup(struct cnic_sock *csk) | |
3629 | { | |
3630 | if (csk->src_port) { | |
3631 | struct cnic_dev *dev = csk->dev; | |
3632 | struct cnic_local *cp = dev->cnic_priv; | |
3633 | ||
9b093360 | 3634 | cnic_free_id(&cp->csk_port_tbl, be16_to_cpu(csk->src_port)); |
a4636960 MC |
3635 | csk->src_port = 0; |
3636 | } | |
3637 | } | |
3638 | ||
3639 | static void cnic_close_conn(struct cnic_sock *csk) | |
3640 | { | |
3641 | if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) { | |
3642 | cnic_cm_upload_pg(csk); | |
3643 | clear_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags); | |
3644 | } | |
3645 | cnic_cm_cleanup(csk); | |
3646 | } | |
3647 | ||
3648 | static int cnic_cm_destroy(struct cnic_sock *csk) | |
3649 | { | |
3650 | if (!cnic_in_use(csk)) | |
3651 | return -EINVAL; | |
3652 | ||
3653 | csk_hold(csk); | |
3654 | clear_bit(SK_F_INUSE, &csk->flags); | |
4e857c58 | 3655 | smp_mb__after_atomic(); |
a4636960 MC |
3656 | while (atomic_read(&csk->ref_count) != 1) |
3657 | msleep(1); | |
3658 | cnic_cm_cleanup(csk); | |
3659 | ||
3660 | csk->flags = 0; | |
3661 | csk_put(csk); | |
3662 | return 0; | |
3663 | } | |
3664 | ||
3665 | static inline u16 cnic_get_vlan(struct net_device *dev, | |
3666 | struct net_device **vlan_dev) | |
3667 | { | |
3668 | if (dev->priv_flags & IFF_802_1Q_VLAN) { | |
3669 | *vlan_dev = vlan_dev_real_dev(dev); | |
3670 | return vlan_dev_vlan_id(dev); | |
3671 | } | |
3672 | *vlan_dev = dev; | |
3673 | return 0; | |
3674 | } | |
3675 | ||
3676 | static int cnic_get_v4_route(struct sockaddr_in *dst_addr, | |
3677 | struct dst_entry **dst) | |
3678 | { | |
faea56c9 | 3679 | #if defined(CONFIG_INET) |
a4636960 MC |
3680 | struct rtable *rt; |
3681 | ||
78fbfd8a DM |
3682 | rt = ip_route_output(&init_net, dst_addr->sin_addr.s_addr, 0, 0, 0); |
3683 | if (!IS_ERR(rt)) { | |
d8d1f30b | 3684 | *dst = &rt->dst; |
78fbfd8a DM |
3685 | return 0; |
3686 | } | |
3687 | return PTR_ERR(rt); | |
faea56c9 RD |
3688 | #else |
3689 | return -ENETUNREACH; | |
3690 | #endif | |
a4636960 MC |
3691 | } |
3692 | ||
3693 | static int cnic_get_v6_route(struct sockaddr_in6 *dst_addr, | |
3694 | struct dst_entry **dst) | |
3695 | { | |
c99d667e | 3696 | #if IS_ENABLED(CONFIG_IPV6) |
4c9483b2 | 3697 | struct flowi6 fl6; |
a4636960 | 3698 | |
4c9483b2 | 3699 | memset(&fl6, 0, sizeof(fl6)); |
4e3fd7a0 | 3700 | fl6.daddr = dst_addr->sin6_addr; |
4c9483b2 DM |
3701 | if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL) |
3702 | fl6.flowi6_oif = dst_addr->sin6_scope_id; | |
a4636960 | 3703 | |
4c9483b2 | 3704 | *dst = ip6_route_output(&init_net, NULL, &fl6); |
0541743b RL |
3705 | if ((*dst)->error) { |
3706 | dst_release(*dst); | |
3707 | *dst = NULL; | |
3708 | return -ENETUNREACH; | |
3709 | } else | |
a4636960 MC |
3710 | return 0; |
3711 | #endif | |
3712 | ||
3713 | return -ENETUNREACH; | |
3714 | } | |
3715 | ||
3716 | static struct cnic_dev *cnic_cm_select_dev(struct sockaddr_in *dst_addr, | |
3717 | int ulp_type) | |
3718 | { | |
3719 | struct cnic_dev *dev = NULL; | |
3720 | struct dst_entry *dst; | |
3721 | struct net_device *netdev = NULL; | |
3722 | int err = -ENETUNREACH; | |
3723 | ||
3724 | if (dst_addr->sin_family == AF_INET) | |
3725 | err = cnic_get_v4_route(dst_addr, &dst); | |
3726 | else if (dst_addr->sin_family == AF_INET6) { | |
3727 | struct sockaddr_in6 *dst_addr6 = | |
3728 | (struct sockaddr_in6 *) dst_addr; | |
3729 | ||
3730 | err = cnic_get_v6_route(dst_addr6, &dst); | |
3731 | } else | |
3732 | return NULL; | |
3733 | ||
3734 | if (err) | |
3735 | return NULL; | |
3736 | ||
3737 | if (!dst->dev) | |
3738 | goto done; | |
3739 | ||
3740 | cnic_get_vlan(dst->dev, &netdev); | |
3741 | ||
3742 | dev = cnic_from_netdev(netdev); | |
3743 | ||
3744 | done: | |
3745 | dst_release(dst); | |
3746 | if (dev) | |
3747 | cnic_put(dev); | |
3748 | return dev; | |
3749 | } | |
3750 | ||
3751 | static int cnic_resolve_addr(struct cnic_sock *csk, struct cnic_sockaddr *saddr) | |
3752 | { | |
3753 | struct cnic_dev *dev = csk->dev; | |
3754 | struct cnic_local *cp = dev->cnic_priv; | |
3755 | ||
3756 | return cnic_send_nlmsg(cp, ISCSI_KEVENT_PATH_REQ, csk); | |
3757 | } | |
3758 | ||
3759 | static int cnic_get_route(struct cnic_sock *csk, struct cnic_sockaddr *saddr) | |
3760 | { | |
3761 | struct cnic_dev *dev = csk->dev; | |
3762 | struct cnic_local *cp = dev->cnic_priv; | |
c76284af MC |
3763 | int is_v6, rc = 0; |
3764 | struct dst_entry *dst = NULL; | |
a4636960 | 3765 | struct net_device *realdev; |
9b093360 MC |
3766 | __be16 local_port; |
3767 | u32 port_id; | |
a4636960 MC |
3768 | |
3769 | if (saddr->local.v6.sin6_family == AF_INET6 && | |
3770 | saddr->remote.v6.sin6_family == AF_INET6) | |
3771 | is_v6 = 1; | |
3772 | else if (saddr->local.v4.sin_family == AF_INET && | |
3773 | saddr->remote.v4.sin_family == AF_INET) | |
3774 | is_v6 = 0; | |
3775 | else | |
3776 | return -EINVAL; | |
3777 | ||
3778 | clear_bit(SK_F_IPV6, &csk->flags); | |
3779 | ||
3780 | if (is_v6) { | |
a4636960 | 3781 | set_bit(SK_F_IPV6, &csk->flags); |
c76284af | 3782 | cnic_get_v6_route(&saddr->remote.v6, &dst); |
a4636960 MC |
3783 | |
3784 | memcpy(&csk->dst_ip[0], &saddr->remote.v6.sin6_addr, | |
3785 | sizeof(struct in6_addr)); | |
3786 | csk->dst_port = saddr->remote.v6.sin6_port; | |
3787 | local_port = saddr->local.v6.sin6_port; | |
a4636960 MC |
3788 | |
3789 | } else { | |
c76284af | 3790 | cnic_get_v4_route(&saddr->remote.v4, &dst); |
a4636960 MC |
3791 | |
3792 | csk->dst_ip[0] = saddr->remote.v4.sin_addr.s_addr; | |
3793 | csk->dst_port = saddr->remote.v4.sin_port; | |
3794 | local_port = saddr->local.v4.sin_port; | |
3795 | } | |
3796 | ||
c76284af MC |
3797 | csk->vlan_id = 0; |
3798 | csk->mtu = dev->netdev->mtu; | |
3799 | if (dst && dst->dev) { | |
3800 | u16 vlan = cnic_get_vlan(dst->dev, &realdev); | |
3801 | if (realdev == dev->netdev) { | |
3802 | csk->vlan_id = vlan; | |
3803 | csk->mtu = dst_mtu(dst); | |
3804 | } | |
3805 | } | |
a4636960 | 3806 | |
9b093360 MC |
3807 | port_id = be16_to_cpu(local_port); |
3808 | if (port_id >= CNIC_LOCAL_PORT_MIN && | |
3809 | port_id < CNIC_LOCAL_PORT_MAX) { | |
3810 | if (cnic_alloc_id(&cp->csk_port_tbl, port_id)) | |
3811 | port_id = 0; | |
a4636960 | 3812 | } else |
9b093360 | 3813 | port_id = 0; |
a4636960 | 3814 | |
9b093360 MC |
3815 | if (!port_id) { |
3816 | port_id = cnic_alloc_new_id(&cp->csk_port_tbl); | |
3817 | if (port_id == -1) { | |
a4636960 MC |
3818 | rc = -ENOMEM; |
3819 | goto err_out; | |
3820 | } | |
9b093360 | 3821 | local_port = cpu_to_be16(port_id); |
a4636960 MC |
3822 | } |
3823 | csk->src_port = local_port; | |
3824 | ||
a4636960 MC |
3825 | err_out: |
3826 | dst_release(dst); | |
3827 | return rc; | |
3828 | } | |
3829 | ||
3830 | static void cnic_init_csk_state(struct cnic_sock *csk) | |
3831 | { | |
3832 | csk->state = 0; | |
3833 | clear_bit(SK_F_OFFLD_SCHED, &csk->flags); | |
3834 | clear_bit(SK_F_CLOSING, &csk->flags); | |
3835 | } | |
3836 | ||
3837 | static int cnic_cm_connect(struct cnic_sock *csk, struct cnic_sockaddr *saddr) | |
3838 | { | |
fab0dc89 | 3839 | struct cnic_local *cp = csk->dev->cnic_priv; |
a4636960 MC |
3840 | int err = 0; |
3841 | ||
fab0dc89 DK |
3842 | if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI) |
3843 | return -EOPNOTSUPP; | |
3844 | ||
a4636960 MC |
3845 | if (!cnic_in_use(csk)) |
3846 | return -EINVAL; | |
3847 | ||
3848 | if (test_and_set_bit(SK_F_CONNECT_START, &csk->flags)) | |
3849 | return -EINVAL; | |
3850 | ||
3851 | cnic_init_csk_state(csk); | |
3852 | ||
3853 | err = cnic_get_route(csk, saddr); | |
3854 | if (err) | |
3855 | goto err_out; | |
3856 | ||
3857 | err = cnic_resolve_addr(csk, saddr); | |
3858 | if (!err) | |
3859 | return 0; | |
3860 | ||
3861 | err_out: | |
3862 | clear_bit(SK_F_CONNECT_START, &csk->flags); | |
3863 | return err; | |
3864 | } | |
3865 | ||
3866 | static int cnic_cm_abort(struct cnic_sock *csk) | |
3867 | { | |
3868 | struct cnic_local *cp = csk->dev->cnic_priv; | |
7b34a464 | 3869 | u32 opcode = L4_KCQE_OPCODE_VALUE_RESET_COMP; |
a4636960 MC |
3870 | |
3871 | if (!cnic_in_use(csk)) | |
3872 | return -EINVAL; | |
3873 | ||
3874 | if (cnic_abort_prep(csk)) | |
3875 | return cnic_cm_abort_req(csk); | |
3876 | ||
3877 | /* Getting here means that we haven't started connect, or | |
0d650ec7 | 3878 | * connect was not successful, or it has been reset by the target. |
a4636960 MC |
3879 | */ |
3880 | ||
a4636960 | 3881 | cp->close_conn(csk, opcode); |
0d650ec7 EW |
3882 | if (csk->state != opcode) { |
3883 | /* Wait for remote reset sequence to complete */ | |
3884 | while (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) | |
3885 | msleep(1); | |
3886 | ||
7b34a464 | 3887 | return -EALREADY; |
0d650ec7 | 3888 | } |
a4636960 MC |
3889 | |
3890 | return 0; | |
3891 | } | |
3892 | ||
3893 | static int cnic_cm_close(struct cnic_sock *csk) | |
3894 | { | |
3895 | if (!cnic_in_use(csk)) | |
3896 | return -EINVAL; | |
3897 | ||
3898 | if (cnic_close_prep(csk)) { | |
3899 | csk->state = L4_KCQE_OPCODE_VALUE_CLOSE_COMP; | |
3900 | return cnic_cm_close_req(csk); | |
ed99daa5 | 3901 | } else { |
0d650ec7 EW |
3902 | /* Wait for remote reset sequence to complete */ |
3903 | while (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) | |
3904 | msleep(1); | |
3905 | ||
ed99daa5 | 3906 | return -EALREADY; |
a4636960 MC |
3907 | } |
3908 | return 0; | |
3909 | } | |
3910 | ||
3911 | static void cnic_cm_upcall(struct cnic_local *cp, struct cnic_sock *csk, | |
3912 | u8 opcode) | |
3913 | { | |
3914 | struct cnic_ulp_ops *ulp_ops; | |
3915 | int ulp_type = csk->ulp_type; | |
3916 | ||
3917 | rcu_read_lock(); | |
3918 | ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]); | |
3919 | if (ulp_ops) { | |
3920 | if (opcode == L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE) | |
3921 | ulp_ops->cm_connect_complete(csk); | |
3922 | else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_COMP) | |
3923 | ulp_ops->cm_close_complete(csk); | |
3924 | else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED) | |
3925 | ulp_ops->cm_remote_abort(csk); | |
3926 | else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_COMP) | |
3927 | ulp_ops->cm_abort_complete(csk); | |
3928 | else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED) | |
3929 | ulp_ops->cm_remote_close(csk); | |
3930 | } | |
3931 | rcu_read_unlock(); | |
3932 | } | |
3933 | ||
3934 | static int cnic_cm_set_pg(struct cnic_sock *csk) | |
3935 | { | |
3936 | if (cnic_offld_prep(csk)) { | |
3937 | if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) | |
3938 | cnic_cm_update_pg(csk); | |
3939 | else | |
3940 | cnic_cm_offload_pg(csk); | |
3941 | } | |
3942 | return 0; | |
3943 | } | |
3944 | ||
3945 | static void cnic_cm_process_offld_pg(struct cnic_dev *dev, struct l4_kcq *kcqe) | |
3946 | { | |
3947 | struct cnic_local *cp = dev->cnic_priv; | |
3948 | u32 l5_cid = kcqe->pg_host_opaque; | |
3949 | u8 opcode = kcqe->op_code; | |
3950 | struct cnic_sock *csk = &cp->csk_tbl[l5_cid]; | |
3951 | ||
3952 | csk_hold(csk); | |
3953 | if (!cnic_in_use(csk)) | |
3954 | goto done; | |
3955 | ||
3956 | if (opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) { | |
3957 | clear_bit(SK_F_OFFLD_SCHED, &csk->flags); | |
3958 | goto done; | |
3959 | } | |
a9736c08 EW |
3960 | /* Possible PG kcqe status: SUCCESS, OFFLOADED_PG, or CTX_ALLOC_FAIL */ |
3961 | if (kcqe->status == L4_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAIL) { | |
3962 | clear_bit(SK_F_OFFLD_SCHED, &csk->flags); | |
3963 | cnic_cm_upcall(cp, csk, | |
3964 | L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE); | |
3965 | goto done; | |
3966 | } | |
3967 | ||
a4636960 MC |
3968 | csk->pg_cid = kcqe->pg_cid; |
3969 | set_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags); | |
3970 | cnic_cm_conn_req(csk); | |
3971 | ||
3972 | done: | |
3973 | csk_put(csk); | |
3974 | } | |
3975 | ||
e1928c86 MC |
3976 | static void cnic_process_fcoe_term_conn(struct cnic_dev *dev, struct kcqe *kcqe) |
3977 | { | |
3978 | struct cnic_local *cp = dev->cnic_priv; | |
3979 | struct fcoe_kcqe *fc_kcqe = (struct fcoe_kcqe *) kcqe; | |
3980 | u32 l5_cid = fc_kcqe->fcoe_conn_id + BNX2X_FCOE_L5_CID_BASE; | |
3981 | struct cnic_context *ctx = &cp->ctx_tbl[l5_cid]; | |
3982 | ||
3983 | ctx->timestamp = jiffies; | |
3984 | ctx->wait_cond = 1; | |
3985 | wake_up(&ctx->waitq); | |
3986 | } | |
3987 | ||
a4636960 MC |
3988 | static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe) |
3989 | { | |
3990 | struct cnic_local *cp = dev->cnic_priv; | |
3991 | struct l4_kcq *l4kcqe = (struct l4_kcq *) kcqe; | |
3992 | u8 opcode = l4kcqe->op_code; | |
3993 | u32 l5_cid; | |
3994 | struct cnic_sock *csk; | |
3995 | ||
e1928c86 MC |
3996 | if (opcode == FCOE_RAMROD_CMD_ID_TERMINATE_CONN) { |
3997 | cnic_process_fcoe_term_conn(dev, kcqe); | |
3998 | return; | |
3999 | } | |
a4636960 MC |
4000 | if (opcode == L4_KCQE_OPCODE_VALUE_OFFLOAD_PG || |
4001 | opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) { | |
4002 | cnic_cm_process_offld_pg(dev, l4kcqe); | |
4003 | return; | |
4004 | } | |
4005 | ||
4006 | l5_cid = l4kcqe->conn_id; | |
4007 | if (opcode & 0x80) | |
4008 | l5_cid = l4kcqe->cid; | |
4009 | if (l5_cid >= MAX_CM_SK_TBL_SZ) | |
4010 | return; | |
4011 | ||
4012 | csk = &cp->csk_tbl[l5_cid]; | |
4013 | csk_hold(csk); | |
4014 | ||
4015 | if (!cnic_in_use(csk)) { | |
4016 | csk_put(csk); | |
4017 | return; | |
4018 | } | |
4019 | ||
4020 | switch (opcode) { | |
a9736c08 EW |
4021 | case L5CM_RAMROD_CMD_ID_TCP_CONNECT: |
4022 | if (l4kcqe->status != 0) { | |
4023 | clear_bit(SK_F_OFFLD_SCHED, &csk->flags); | |
4024 | cnic_cm_upcall(cp, csk, | |
4025 | L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE); | |
4026 | } | |
4027 | break; | |
a4636960 MC |
4028 | case L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE: |
4029 | if (l4kcqe->status == 0) | |
4030 | set_bit(SK_F_OFFLD_COMPLETE, &csk->flags); | |
8ec3e702 MC |
4031 | else if (l4kcqe->status == |
4032 | L4_KCQE_COMPLETION_STATUS_PARITY_ERROR) | |
0cb1f4b9 | 4033 | set_bit(SK_F_HW_ERR, &csk->flags); |
a4636960 | 4034 | |
4e857c58 | 4035 | smp_mb__before_atomic(); |
a4636960 MC |
4036 | clear_bit(SK_F_OFFLD_SCHED, &csk->flags); |
4037 | cnic_cm_upcall(cp, csk, opcode); | |
4038 | break; | |
4039 | ||
28e3a8f3 EW |
4040 | case L5CM_RAMROD_CMD_ID_CLOSE: { |
4041 | struct iscsi_kcqe *l5kcqe = (struct iscsi_kcqe *) kcqe; | |
4042 | ||
4043 | if (l4kcqe->status != 0 || l5kcqe->completion_status != 0) { | |
4044 | netdev_warn(dev->netdev, "RAMROD CLOSE compl with status 0x%x completion status 0x%x\n", | |
4045 | l4kcqe->status, l5kcqe->completion_status); | |
7bc910fd EW |
4046 | opcode = L4_KCQE_OPCODE_VALUE_CLOSE_COMP; |
4047 | /* Fall through */ | |
4048 | } else { | |
4049 | break; | |
4050 | } | |
28e3a8f3 | 4051 | } |
a4636960 | 4052 | case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED: |
a4636960 MC |
4053 | case L4_KCQE_OPCODE_VALUE_CLOSE_COMP: |
4054 | case L4_KCQE_OPCODE_VALUE_RESET_COMP: | |
71034ba8 MC |
4055 | case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE: |
4056 | case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD: | |
8ec3e702 | 4057 | if (l4kcqe->status == L4_KCQE_COMPLETION_STATUS_PARITY_ERROR) |
23021c21 MC |
4058 | set_bit(SK_F_HW_ERR, &csk->flags); |
4059 | ||
a4636960 MC |
4060 | cp->close_conn(csk, opcode); |
4061 | break; | |
4062 | ||
4063 | case L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED: | |
101c40c8 MC |
4064 | /* after we already sent CLOSE_REQ */ |
4065 | if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) && | |
4066 | !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags) && | |
4067 | csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP) | |
4068 | cp->close_conn(csk, L4_KCQE_OPCODE_VALUE_RESET_COMP); | |
4069 | else | |
4070 | cnic_cm_upcall(cp, csk, opcode); | |
a4636960 MC |
4071 | break; |
4072 | } | |
4073 | csk_put(csk); | |
4074 | } | |
4075 | ||
4076 | static void cnic_cm_indicate_kcqe(void *data, struct kcqe *kcqe[], u32 num) | |
4077 | { | |
4078 | struct cnic_dev *dev = data; | |
4079 | int i; | |
4080 | ||
4081 | for (i = 0; i < num; i++) | |
4082 | cnic_cm_process_kcqe(dev, kcqe[i]); | |
4083 | } | |
4084 | ||
4085 | static struct cnic_ulp_ops cm_ulp_ops = { | |
4086 | .indicate_kcqes = cnic_cm_indicate_kcqe, | |
4087 | }; | |
4088 | ||
4089 | static void cnic_cm_free_mem(struct cnic_dev *dev) | |
4090 | { | |
4091 | struct cnic_local *cp = dev->cnic_priv; | |
4092 | ||
4093 | kfree(cp->csk_tbl); | |
4094 | cp->csk_tbl = NULL; | |
4095 | cnic_free_id_tbl(&cp->csk_port_tbl); | |
4096 | } | |
4097 | ||
4098 | static int cnic_cm_alloc_mem(struct cnic_dev *dev) | |
4099 | { | |
4100 | struct cnic_local *cp = dev->cnic_priv; | |
11f23aa8 | 4101 | u32 port_id; |
a4636960 MC |
4102 | |
4103 | cp->csk_tbl = kzalloc(sizeof(struct cnic_sock) * MAX_CM_SK_TBL_SZ, | |
4104 | GFP_KERNEL); | |
4105 | if (!cp->csk_tbl) | |
4106 | return -ENOMEM; | |
4107 | ||
e00adf39 | 4108 | port_id = prandom_u32(); |
11f23aa8 | 4109 | port_id %= CNIC_LOCAL_PORT_RANGE; |
a4636960 | 4110 | if (cnic_init_id_tbl(&cp->csk_port_tbl, CNIC_LOCAL_PORT_RANGE, |
11f23aa8 | 4111 | CNIC_LOCAL_PORT_MIN, port_id)) { |
a4636960 MC |
4112 | cnic_cm_free_mem(dev); |
4113 | return -ENOMEM; | |
4114 | } | |
4115 | return 0; | |
4116 | } | |
4117 | ||
4118 | static int cnic_ready_to_close(struct cnic_sock *csk, u32 opcode) | |
4119 | { | |
943189f1 MC |
4120 | if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) { |
4121 | /* Unsolicited RESET_COMP or RESET_RECEIVED */ | |
4122 | opcode = L4_KCQE_OPCODE_VALUE_RESET_RECEIVED; | |
4123 | csk->state = opcode; | |
a4636960 | 4124 | } |
943189f1 MC |
4125 | |
4126 | /* 1. If event opcode matches the expected event in csk->state | |
101c40c8 MC |
4127 | * 2. If the expected event is CLOSE_COMP or RESET_COMP, we accept any |
4128 | * event | |
7b34a464 MC |
4129 | * 3. If the expected event is 0, meaning the connection was never |
4130 | * never established, we accept the opcode from cm_abort. | |
66883e90 | 4131 | */ |
7b34a464 | 4132 | if (opcode == csk->state || csk->state == 0 || |
101c40c8 MC |
4133 | csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP || |
4134 | csk->state == L4_KCQE_OPCODE_VALUE_RESET_COMP) { | |
7b34a464 MC |
4135 | if (!test_and_set_bit(SK_F_CLOSING, &csk->flags)) { |
4136 | if (csk->state == 0) | |
4137 | csk->state = opcode; | |
66883e90 | 4138 | return 1; |
7b34a464 | 4139 | } |
66883e90 | 4140 | } |
a4636960 MC |
4141 | return 0; |
4142 | } | |
4143 | ||
4144 | static void cnic_close_bnx2_conn(struct cnic_sock *csk, u32 opcode) | |
4145 | { | |
4146 | struct cnic_dev *dev = csk->dev; | |
4147 | struct cnic_local *cp = dev->cnic_priv; | |
4148 | ||
a1e621bf MC |
4149 | if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED) { |
4150 | cnic_cm_upcall(cp, csk, opcode); | |
4151 | return; | |
4152 | } | |
4153 | ||
a4636960 | 4154 | clear_bit(SK_F_CONNECT_START, &csk->flags); |
66883e90 | 4155 | cnic_close_conn(csk); |
7b34a464 | 4156 | csk->state = opcode; |
66883e90 | 4157 | cnic_cm_upcall(cp, csk, opcode); |
a4636960 MC |
4158 | } |
4159 | ||
4160 | static void cnic_cm_stop_bnx2_hw(struct cnic_dev *dev) | |
4161 | { | |
4162 | } | |
4163 | ||
4164 | static int cnic_cm_init_bnx2_hw(struct cnic_dev *dev) | |
4165 | { | |
4166 | u32 seed; | |
4167 | ||
e00adf39 | 4168 | seed = prandom_u32(); |
a4636960 MC |
4169 | cnic_ctx_wr(dev, 45, 0, seed); |
4170 | return 0; | |
4171 | } | |
4172 | ||
71034ba8 MC |
4173 | static void cnic_close_bnx2x_conn(struct cnic_sock *csk, u32 opcode) |
4174 | { | |
4175 | struct cnic_dev *dev = csk->dev; | |
4176 | struct cnic_local *cp = dev->cnic_priv; | |
4177 | struct cnic_context *ctx = &cp->ctx_tbl[csk->l5_cid]; | |
4178 | union l5cm_specific_data l5_data; | |
4179 | u32 cmd = 0; | |
4180 | int close_complete = 0; | |
4181 | ||
4182 | switch (opcode) { | |
4183 | case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED: | |
4184 | case L4_KCQE_OPCODE_VALUE_CLOSE_COMP: | |
4185 | case L4_KCQE_OPCODE_VALUE_RESET_COMP: | |
7b34a464 | 4186 | if (cnic_ready_to_close(csk, opcode)) { |
23021c21 MC |
4187 | if (test_bit(SK_F_HW_ERR, &csk->flags)) |
4188 | close_complete = 1; | |
4189 | else if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) | |
7b34a464 MC |
4190 | cmd = L5CM_RAMROD_CMD_ID_SEARCHER_DELETE; |
4191 | else | |
4192 | close_complete = 1; | |
4193 | } | |
71034ba8 MC |
4194 | break; |
4195 | case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE: | |
4196 | cmd = L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD; | |
4197 | break; | |
4198 | case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD: | |
4199 | close_complete = 1; | |
4200 | break; | |
4201 | } | |
4202 | if (cmd) { | |
4203 | memset(&l5_data, 0, sizeof(l5_data)); | |
4204 | ||
4205 | cnic_submit_kwqe_16(dev, cmd, csk->cid, ISCSI_CONNECTION_TYPE, | |
4206 | &l5_data); | |
4207 | } else if (close_complete) { | |
4208 | ctx->timestamp = jiffies; | |
4209 | cnic_close_conn(csk); | |
4210 | cnic_cm_upcall(cp, csk, csk->state); | |
4211 | } | |
4212 | } | |
4213 | ||
4214 | static void cnic_cm_stop_bnx2x_hw(struct cnic_dev *dev) | |
4215 | { | |
fdf24086 | 4216 | struct cnic_local *cp = dev->cnic_priv; |
fdf24086 MC |
4217 | |
4218 | if (!cp->ctx_tbl) | |
4219 | return; | |
4220 | ||
4221 | if (!netif_running(dev->netdev)) | |
4222 | return; | |
4223 | ||
74e49bbd | 4224 | cnic_bnx2x_delete_wait(dev, 0); |
fdf24086 MC |
4225 | |
4226 | cancel_delayed_work(&cp->delete_task); | |
4227 | flush_workqueue(cnic_wq); | |
4228 | ||
4229 | if (atomic_read(&cp->iscsi_conn) != 0) | |
4230 | netdev_warn(dev->netdev, "%d iSCSI connections not destroyed\n", | |
4231 | atomic_read(&cp->iscsi_conn)); | |
71034ba8 MC |
4232 | } |
4233 | ||
4234 | static int cnic_cm_init_bnx2x_hw(struct cnic_dev *dev) | |
4235 | { | |
68c64d20 | 4236 | struct bnx2x *bp = netdev_priv(dev->netdev); |
a5b3c4ae | 4237 | u32 pfid = bp->pfid; |
5bf945a8 | 4238 | u32 port = BP_PORT(bp); |
71034ba8 MC |
4239 | |
4240 | cnic_init_bnx2x_mac(dev); | |
b3bd2d65 | 4241 | cnic_bnx2x_set_tcp_options(dev, 0, 1); |
71034ba8 MC |
4242 | |
4243 | CNIC_WR16(dev, BAR_XSTRORM_INTMEM + | |
1420398d | 4244 | XSTORM_ISCSI_LOCAL_VLAN_OFFSET(pfid), 0); |
71034ba8 MC |
4245 | |
4246 | CNIC_WR(dev, BAR_XSTRORM_INTMEM + | |
523224a3 | 4247 | XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_ENABLED_OFFSET(port), 1); |
71034ba8 | 4248 | CNIC_WR(dev, BAR_XSTRORM_INTMEM + |
523224a3 | 4249 | XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_MAX_COUNT_OFFSET(port), |
71034ba8 MC |
4250 | DEF_MAX_DA_COUNT); |
4251 | ||
4252 | CNIC_WR8(dev, BAR_XSTRORM_INTMEM + | |
1420398d | 4253 | XSTORM_ISCSI_TCP_VARS_TTL_OFFSET(pfid), DEF_TTL); |
71034ba8 | 4254 | CNIC_WR8(dev, BAR_XSTRORM_INTMEM + |
1420398d | 4255 | XSTORM_ISCSI_TCP_VARS_TOS_OFFSET(pfid), DEF_TOS); |
71034ba8 | 4256 | CNIC_WR8(dev, BAR_XSTRORM_INTMEM + |
1420398d | 4257 | XSTORM_ISCSI_TCP_VARS_ADV_WND_SCL_OFFSET(pfid), 2); |
71034ba8 | 4258 | CNIC_WR(dev, BAR_XSTRORM_INTMEM + |
1420398d | 4259 | XSTORM_TCP_TX_SWS_TIMER_VAL_OFFSET(pfid), DEF_SWS_TIMER); |
71034ba8 | 4260 | |
1420398d | 4261 | CNIC_WR(dev, BAR_TSTRORM_INTMEM + TSTORM_TCP_MAX_CWND_OFFSET(pfid), |
71034ba8 MC |
4262 | DEF_MAX_CWND); |
4263 | return 0; | |
4264 | } | |
4265 | ||
fdf24086 MC |
4266 | static void cnic_delete_task(struct work_struct *work) |
4267 | { | |
4268 | struct cnic_local *cp; | |
4269 | struct cnic_dev *dev; | |
4270 | u32 i; | |
4271 | int need_resched = 0; | |
4272 | ||
4273 | cp = container_of(work, struct cnic_local, delete_task.work); | |
4274 | dev = cp->dev; | |
4275 | ||
fab0dc89 DK |
4276 | if (test_and_clear_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags)) { |
4277 | struct drv_ctl_info info; | |
4278 | ||
fab0dc89 | 4279 | cnic_ulp_stop_one(cp, CNIC_ULP_ISCSI); |
fab0dc89 | 4280 | |
eddb7554 | 4281 | memset(&info, 0, sizeof(struct drv_ctl_info)); |
fab0dc89 DK |
4282 | info.cmd = DRV_CTL_ISCSI_STOPPED_CMD; |
4283 | cp->ethdev->drv_ctl(dev->netdev, &info); | |
4284 | } | |
4285 | ||
fdf24086 MC |
4286 | for (i = 0; i < cp->max_cid_space; i++) { |
4287 | struct cnic_context *ctx = &cp->ctx_tbl[i]; | |
619c5cb6 | 4288 | int err; |
fdf24086 MC |
4289 | |
4290 | if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags) || | |
4291 | !test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags)) | |
4292 | continue; | |
4293 | ||
4294 | if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) { | |
4295 | need_resched = 1; | |
4296 | continue; | |
4297 | } | |
4298 | ||
4299 | if (!test_and_clear_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags)) | |
4300 | continue; | |
4301 | ||
619c5cb6 | 4302 | err = cnic_bnx2x_destroy_ramrod(dev, i); |
fdf24086 MC |
4303 | |
4304 | cnic_free_bnx2x_conn_resc(dev, i); | |
619c5cb6 VZ |
4305 | if (!err) { |
4306 | if (ctx->ulp_proto_id == CNIC_ULP_ISCSI) | |
4307 | atomic_dec(&cp->iscsi_conn); | |
fdf24086 | 4308 | |
619c5cb6 VZ |
4309 | clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags); |
4310 | } | |
fdf24086 MC |
4311 | } |
4312 | ||
4313 | if (need_resched) | |
4314 | queue_delayed_work(cnic_wq, &cp->delete_task, | |
4315 | msecs_to_jiffies(10)); | |
4316 | ||
4317 | } | |
4318 | ||
a4636960 MC |
4319 | static int cnic_cm_open(struct cnic_dev *dev) |
4320 | { | |
4321 | struct cnic_local *cp = dev->cnic_priv; | |
4322 | int err; | |
4323 | ||
4324 | err = cnic_cm_alloc_mem(dev); | |
4325 | if (err) | |
4326 | return err; | |
4327 | ||
4328 | err = cp->start_cm(dev); | |
4329 | ||
4330 | if (err) | |
4331 | goto err_out; | |
4332 | ||
fdf24086 MC |
4333 | INIT_DELAYED_WORK(&cp->delete_task, cnic_delete_task); |
4334 | ||
a4636960 MC |
4335 | dev->cm_create = cnic_cm_create; |
4336 | dev->cm_destroy = cnic_cm_destroy; | |
4337 | dev->cm_connect = cnic_cm_connect; | |
4338 | dev->cm_abort = cnic_cm_abort; | |
4339 | dev->cm_close = cnic_cm_close; | |
4340 | dev->cm_select_dev = cnic_cm_select_dev; | |
4341 | ||
4342 | cp->ulp_handle[CNIC_ULP_L4] = dev; | |
4343 | rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], &cm_ulp_ops); | |
4344 | return 0; | |
4345 | ||
4346 | err_out: | |
4347 | cnic_cm_free_mem(dev); | |
4348 | return err; | |
4349 | } | |
4350 | ||
4351 | static int cnic_cm_shutdown(struct cnic_dev *dev) | |
4352 | { | |
4353 | struct cnic_local *cp = dev->cnic_priv; | |
4354 | int i; | |
4355 | ||
a4636960 MC |
4356 | if (!cp->csk_tbl) |
4357 | return 0; | |
4358 | ||
4359 | for (i = 0; i < MAX_CM_SK_TBL_SZ; i++) { | |
4360 | struct cnic_sock *csk = &cp->csk_tbl[i]; | |
4361 | ||
4362 | clear_bit(SK_F_INUSE, &csk->flags); | |
4363 | cnic_cm_cleanup(csk); | |
4364 | } | |
4365 | cnic_cm_free_mem(dev); | |
4366 | ||
4367 | return 0; | |
4368 | } | |
4369 | ||
4370 | static void cnic_init_context(struct cnic_dev *dev, u32 cid) | |
4371 | { | |
a4636960 MC |
4372 | u32 cid_addr; |
4373 | int i; | |
4374 | ||
a4636960 MC |
4375 | cid_addr = GET_CID_ADDR(cid); |
4376 | ||
4377 | for (i = 0; i < CTX_SIZE; i += 4) | |
4378 | cnic_ctx_wr(dev, cid_addr, i, 0); | |
4379 | } | |
4380 | ||
4381 | static int cnic_setup_5709_context(struct cnic_dev *dev, int valid) | |
4382 | { | |
4383 | struct cnic_local *cp = dev->cnic_priv; | |
4384 | int ret = 0, i; | |
4385 | u32 valid_bit = valid ? BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID : 0; | |
4386 | ||
4ce45e02 | 4387 | if (BNX2_CHIP(cp) != BNX2_CHIP_5709) |
a4636960 MC |
4388 | return 0; |
4389 | ||
4390 | for (i = 0; i < cp->ctx_blks; i++) { | |
4391 | int j; | |
4392 | u32 idx = cp->ctx_arr[i].cid / cp->cids_per_blk; | |
4393 | u32 val; | |
4394 | ||
be1fefc2 | 4395 | memset(cp->ctx_arr[i].ctx, 0, CNIC_PAGE_SIZE); |
a4636960 MC |
4396 | |
4397 | CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA0, | |
4398 | (cp->ctx_arr[i].mapping & 0xffffffff) | valid_bit); | |
4399 | CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA1, | |
4400 | (u64) cp->ctx_arr[i].mapping >> 32); | |
4401 | CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL, idx | | |
4402 | BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ); | |
4403 | for (j = 0; j < 10; j++) { | |
4404 | ||
4405 | val = CNIC_RD(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL); | |
4406 | if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ)) | |
4407 | break; | |
4408 | udelay(5); | |
4409 | } | |
4410 | if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) { | |
4411 | ret = -EBUSY; | |
4412 | break; | |
4413 | } | |
4414 | } | |
4415 | return ret; | |
4416 | } | |
4417 | ||
4418 | static void cnic_free_irq(struct cnic_dev *dev) | |
4419 | { | |
4420 | struct cnic_local *cp = dev->cnic_priv; | |
4421 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
4422 | ||
4423 | if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) { | |
4424 | cp->disable_int_sync(dev); | |
6e0dc643 | 4425 | tasklet_kill(&cp->cnic_irq_task); |
a4636960 MC |
4426 | free_irq(ethdev->irq_arr[0].vector, dev); |
4427 | } | |
4428 | } | |
4429 | ||
6e0dc643 MC |
4430 | static int cnic_request_irq(struct cnic_dev *dev) |
4431 | { | |
4432 | struct cnic_local *cp = dev->cnic_priv; | |
4433 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
4434 | int err; | |
4435 | ||
4436 | err = request_irq(ethdev->irq_arr[0].vector, cnic_irq, 0, "cnic", dev); | |
4437 | if (err) | |
4438 | tasklet_disable(&cp->cnic_irq_task); | |
4439 | ||
4440 | return err; | |
4441 | } | |
4442 | ||
a4636960 MC |
4443 | static int cnic_init_bnx2_irq(struct cnic_dev *dev) |
4444 | { | |
4445 | struct cnic_local *cp = dev->cnic_priv; | |
4446 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
4447 | ||
4448 | if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) { | |
4449 | int err, i = 0; | |
4450 | int sblk_num = cp->status_blk_num; | |
4451 | u32 base = ((sblk_num - 1) * BNX2_HC_SB_CONFIG_SIZE) + | |
4452 | BNX2_HC_SB_CONFIG_1; | |
4453 | ||
4454 | CNIC_WR(dev, base, BNX2_HC_SB_CONFIG_1_ONE_SHOT); | |
4455 | ||
4456 | CNIC_WR(dev, base + BNX2_HC_COMP_PROD_TRIP_OFF, (2 << 16) | 8); | |
4457 | CNIC_WR(dev, base + BNX2_HC_COM_TICKS_OFF, (64 << 16) | 220); | |
4458 | CNIC_WR(dev, base + BNX2_HC_CMD_TICKS_OFF, (64 << 16) | 220); | |
4459 | ||
a4dde3ab | 4460 | cp->last_status_idx = cp->status_blk.bnx2->status_idx; |
164165da | 4461 | tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2_msix, |
a4636960 | 4462 | (unsigned long) dev); |
6e0dc643 MC |
4463 | err = cnic_request_irq(dev); |
4464 | if (err) | |
a4636960 | 4465 | return err; |
6e0dc643 | 4466 | |
a4dde3ab | 4467 | while (cp->status_blk.bnx2->status_completion_producer_index && |
a4636960 MC |
4468 | i < 10) { |
4469 | CNIC_WR(dev, BNX2_HC_COALESCE_NOW, | |
4470 | 1 << (11 + sblk_num)); | |
4471 | udelay(10); | |
4472 | i++; | |
4473 | barrier(); | |
4474 | } | |
a4dde3ab | 4475 | if (cp->status_blk.bnx2->status_completion_producer_index) { |
a4636960 MC |
4476 | cnic_free_irq(dev); |
4477 | goto failed; | |
4478 | } | |
4479 | ||
4480 | } else { | |
a4dde3ab | 4481 | struct status_block *sblk = cp->status_blk.gen; |
a4636960 MC |
4482 | u32 hc_cmd = CNIC_RD(dev, BNX2_HC_COMMAND); |
4483 | int i = 0; | |
4484 | ||
4485 | while (sblk->status_completion_producer_index && i < 10) { | |
4486 | CNIC_WR(dev, BNX2_HC_COMMAND, | |
4487 | hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT); | |
4488 | udelay(10); | |
4489 | i++; | |
4490 | barrier(); | |
4491 | } | |
4492 | if (sblk->status_completion_producer_index) | |
4493 | goto failed; | |
4494 | ||
4495 | } | |
4496 | return 0; | |
4497 | ||
4498 | failed: | |
ddf79b20 | 4499 | netdev_err(dev->netdev, "KCQ index not resetting to 0\n"); |
a4636960 MC |
4500 | return -EBUSY; |
4501 | } | |
4502 | ||
4503 | static void cnic_enable_bnx2_int(struct cnic_dev *dev) | |
4504 | { | |
4505 | struct cnic_local *cp = dev->cnic_priv; | |
4506 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
4507 | ||
4508 | if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)) | |
4509 | return; | |
4510 | ||
4511 | CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num | | |
4512 | BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx); | |
4513 | } | |
4514 | ||
4515 | static void cnic_disable_bnx2_int_sync(struct cnic_dev *dev) | |
4516 | { | |
4517 | struct cnic_local *cp = dev->cnic_priv; | |
4518 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
4519 | ||
4520 | if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)) | |
4521 | return; | |
4522 | ||
4523 | CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num | | |
4524 | BNX2_PCICFG_INT_ACK_CMD_MASK_INT); | |
4525 | CNIC_RD(dev, BNX2_PCICFG_INT_ACK_CMD); | |
4526 | synchronize_irq(ethdev->irq_arr[0].vector); | |
4527 | } | |
4528 | ||
4529 | static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev) | |
4530 | { | |
4531 | struct cnic_local *cp = dev->cnic_priv; | |
4532 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
cd801536 | 4533 | struct cnic_uio_dev *udev = cp->udev; |
a4636960 MC |
4534 | u32 cid_addr, tx_cid, sb_id; |
4535 | u32 val, offset0, offset1, offset2, offset3; | |
4536 | int i; | |
2bc4078e | 4537 | struct bnx2_tx_bd *txbd; |
cd801536 | 4538 | dma_addr_t buf_map, ring_map = udev->l2_ring_map; |
a4dde3ab | 4539 | struct status_block *s_blk = cp->status_blk.gen; |
a4636960 MC |
4540 | |
4541 | sb_id = cp->status_blk_num; | |
4542 | tx_cid = 20; | |
a4636960 MC |
4543 | cp->tx_cons_ptr = &s_blk->status_tx_quick_consumer_index2; |
4544 | if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) { | |
a4dde3ab | 4545 | struct status_block_msix *sblk = cp->status_blk.bnx2; |
a4636960 MC |
4546 | |
4547 | tx_cid = TX_TSS_CID + sb_id - 1; | |
a4636960 MC |
4548 | CNIC_WR(dev, BNX2_TSCH_TSS_CFG, (sb_id << 24) | |
4549 | (TX_TSS_CID << 7)); | |
4550 | cp->tx_cons_ptr = &sblk->status_tx_quick_consumer_index; | |
4551 | } | |
4552 | cp->tx_cons = *cp->tx_cons_ptr; | |
4553 | ||
4554 | cid_addr = GET_CID_ADDR(tx_cid); | |
4ce45e02 | 4555 | if (BNX2_CHIP(cp) == BNX2_CHIP_5709) { |
a4636960 MC |
4556 | u32 cid_addr2 = GET_CID_ADDR(tx_cid + 4) + 0x40; |
4557 | ||
4558 | for (i = 0; i < PHY_CTX_SIZE; i += 4) | |
4559 | cnic_ctx_wr(dev, cid_addr2, i, 0); | |
4560 | ||
4561 | offset0 = BNX2_L2CTX_TYPE_XI; | |
4562 | offset1 = BNX2_L2CTX_CMD_TYPE_XI; | |
4563 | offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI; | |
4564 | offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI; | |
4565 | } else { | |
b58ffb41 MC |
4566 | cnic_init_context(dev, tx_cid); |
4567 | cnic_init_context(dev, tx_cid + 1); | |
4568 | ||
a4636960 MC |
4569 | offset0 = BNX2_L2CTX_TYPE; |
4570 | offset1 = BNX2_L2CTX_CMD_TYPE; | |
4571 | offset2 = BNX2_L2CTX_TBDR_BHADDR_HI; | |
4572 | offset3 = BNX2_L2CTX_TBDR_BHADDR_LO; | |
4573 | } | |
4574 | val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2; | |
4575 | cnic_ctx_wr(dev, cid_addr, offset0, val); | |
4576 | ||
4577 | val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16); | |
4578 | cnic_ctx_wr(dev, cid_addr, offset1, val); | |
4579 | ||
43d620c8 | 4580 | txbd = udev->l2_ring; |
a4636960 | 4581 | |
cd801536 | 4582 | buf_map = udev->l2_buf_map; |
2bc4078e | 4583 | for (i = 0; i < BNX2_MAX_TX_DESC_CNT; i++, txbd++) { |
a4636960 MC |
4584 | txbd->tx_bd_haddr_hi = (u64) buf_map >> 32; |
4585 | txbd->tx_bd_haddr_lo = (u64) buf_map & 0xffffffff; | |
4586 | } | |
cd801536 | 4587 | val = (u64) ring_map >> 32; |
a4636960 MC |
4588 | cnic_ctx_wr(dev, cid_addr, offset2, val); |
4589 | txbd->tx_bd_haddr_hi = val; | |
4590 | ||
cd801536 | 4591 | val = (u64) ring_map & 0xffffffff; |
a4636960 MC |
4592 | cnic_ctx_wr(dev, cid_addr, offset3, val); |
4593 | txbd->tx_bd_haddr_lo = val; | |
4594 | } | |
4595 | ||
4596 | static void cnic_init_bnx2_rx_ring(struct cnic_dev *dev) | |
4597 | { | |
4598 | struct cnic_local *cp = dev->cnic_priv; | |
4599 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
cd801536 | 4600 | struct cnic_uio_dev *udev = cp->udev; |
a4636960 MC |
4601 | u32 cid_addr, sb_id, val, coal_reg, coal_val; |
4602 | int i; | |
2bc4078e | 4603 | struct bnx2_rx_bd *rxbd; |
a4dde3ab | 4604 | struct status_block *s_blk = cp->status_blk.gen; |
cd801536 | 4605 | dma_addr_t ring_map = udev->l2_ring_map; |
a4636960 MC |
4606 | |
4607 | sb_id = cp->status_blk_num; | |
4608 | cnic_init_context(dev, 2); | |
4609 | cp->rx_cons_ptr = &s_blk->status_rx_quick_consumer_index2; | |
4610 | coal_reg = BNX2_HC_COMMAND; | |
4611 | coal_val = CNIC_RD(dev, coal_reg); | |
4612 | if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) { | |
a4dde3ab | 4613 | struct status_block_msix *sblk = cp->status_blk.bnx2; |
a4636960 MC |
4614 | |
4615 | cp->rx_cons_ptr = &sblk->status_rx_quick_consumer_index; | |
4616 | coal_reg = BNX2_HC_COALESCE_NOW; | |
4617 | coal_val = 1 << (11 + sb_id); | |
4618 | } | |
4619 | i = 0; | |
4620 | while (!(*cp->rx_cons_ptr != 0) && i < 10) { | |
4621 | CNIC_WR(dev, coal_reg, coal_val); | |
4622 | udelay(10); | |
4623 | i++; | |
4624 | barrier(); | |
4625 | } | |
4626 | cp->rx_cons = *cp->rx_cons_ptr; | |
4627 | ||
4628 | cid_addr = GET_CID_ADDR(2); | |
4629 | val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE | | |
4630 | BNX2_L2CTX_CTX_TYPE_SIZE_L2 | (0x02 << 8); | |
4631 | cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_CTX_TYPE, val); | |
4632 | ||
4633 | if (sb_id == 0) | |
d0549382 | 4634 | val = 2 << BNX2_L2CTX_L2_STATUSB_NUM_SHIFT; |
a4636960 | 4635 | else |
d0549382 | 4636 | val = BNX2_L2CTX_L2_STATUSB_NUM(sb_id); |
a4636960 MC |
4637 | cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_HOST_BDIDX, val); |
4638 | ||
be1fefc2 | 4639 | rxbd = udev->l2_ring + CNIC_PAGE_SIZE; |
2bc4078e | 4640 | for (i = 0; i < BNX2_MAX_RX_DESC_CNT; i++, rxbd++) { |
a4636960 MC |
4641 | dma_addr_t buf_map; |
4642 | int n = (i % cp->l2_rx_ring_size) + 1; | |
4643 | ||
cd801536 | 4644 | buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size); |
a4636960 MC |
4645 | rxbd->rx_bd_len = cp->l2_single_buf_size; |
4646 | rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END; | |
4647 | rxbd->rx_bd_haddr_hi = (u64) buf_map >> 32; | |
4648 | rxbd->rx_bd_haddr_lo = (u64) buf_map & 0xffffffff; | |
4649 | } | |
be1fefc2 | 4650 | val = (u64) (ring_map + CNIC_PAGE_SIZE) >> 32; |
a4636960 MC |
4651 | cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val); |
4652 | rxbd->rx_bd_haddr_hi = val; | |
4653 | ||
be1fefc2 | 4654 | val = (u64) (ring_map + CNIC_PAGE_SIZE) & 0xffffffff; |
a4636960 MC |
4655 | cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val); |
4656 | rxbd->rx_bd_haddr_lo = val; | |
4657 | ||
4658 | val = cnic_reg_rd_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD); | |
4659 | cnic_reg_wr_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD, val | (1 << 2)); | |
4660 | } | |
4661 | ||
4662 | static void cnic_shutdown_bnx2_rx_ring(struct cnic_dev *dev) | |
4663 | { | |
4664 | struct kwqe *wqes[1], l2kwqe; | |
4665 | ||
4666 | memset(&l2kwqe, 0, sizeof(l2kwqe)); | |
4667 | wqes[0] = &l2kwqe; | |
e1928c86 | 4668 | l2kwqe.kwqe_op_flag = (L2_LAYER_CODE << KWQE_LAYER_SHIFT) | |
a4636960 MC |
4669 | (L2_KWQE_OPCODE_VALUE_FLUSH << |
4670 | KWQE_OPCODE_SHIFT) | 2; | |
4671 | dev->submit_kwqes(dev, wqes, 1); | |
4672 | } | |
4673 | ||
4674 | static void cnic_set_bnx2_mac(struct cnic_dev *dev) | |
4675 | { | |
4676 | struct cnic_local *cp = dev->cnic_priv; | |
4677 | u32 val; | |
4678 | ||
4679 | val = cp->func << 2; | |
4680 | ||
4681 | cp->shmem_base = cnic_reg_rd_ind(dev, BNX2_SHM_HDR_ADDR_0 + val); | |
4682 | ||
4683 | val = cnic_reg_rd_ind(dev, cp->shmem_base + | |
4684 | BNX2_PORT_HW_CFG_ISCSI_MAC_UPPER); | |
4685 | dev->mac_addr[0] = (u8) (val >> 8); | |
4686 | dev->mac_addr[1] = (u8) val; | |
4687 | ||
4688 | CNIC_WR(dev, BNX2_EMAC_MAC_MATCH4, val); | |
4689 | ||
4690 | val = cnic_reg_rd_ind(dev, cp->shmem_base + | |
4691 | BNX2_PORT_HW_CFG_ISCSI_MAC_LOWER); | |
4692 | dev->mac_addr[2] = (u8) (val >> 24); | |
4693 | dev->mac_addr[3] = (u8) (val >> 16); | |
4694 | dev->mac_addr[4] = (u8) (val >> 8); | |
4695 | dev->mac_addr[5] = (u8) val; | |
4696 | ||
4697 | CNIC_WR(dev, BNX2_EMAC_MAC_MATCH5, val); | |
4698 | ||
4699 | val = 4 | BNX2_RPM_SORT_USER2_BC_EN; | |
4ce45e02 | 4700 | if (BNX2_CHIP(cp) != BNX2_CHIP_5709) |
a4636960 MC |
4701 | val |= BNX2_RPM_SORT_USER2_PROM_VLAN; |
4702 | ||
4703 | CNIC_WR(dev, BNX2_RPM_SORT_USER2, 0x0); | |
4704 | CNIC_WR(dev, BNX2_RPM_SORT_USER2, val); | |
4705 | CNIC_WR(dev, BNX2_RPM_SORT_USER2, val | BNX2_RPM_SORT_USER2_ENA); | |
4706 | } | |
4707 | ||
4708 | static int cnic_start_bnx2_hw(struct cnic_dev *dev) | |
4709 | { | |
4710 | struct cnic_local *cp = dev->cnic_priv; | |
4711 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
a4dde3ab | 4712 | struct status_block *sblk = cp->status_blk.gen; |
e6c28894 | 4713 | u32 val, kcq_cid_addr, kwq_cid_addr; |
a4636960 MC |
4714 | int err; |
4715 | ||
4716 | cnic_set_bnx2_mac(dev); | |
4717 | ||
4718 | val = CNIC_RD(dev, BNX2_MQ_CONFIG); | |
4719 | val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE; | |
be1fefc2 | 4720 | if (CNIC_PAGE_BITS > 12) |
a4636960 MC |
4721 | val |= (12 - 8) << 4; |
4722 | else | |
be1fefc2 | 4723 | val |= (CNIC_PAGE_BITS - 8) << 4; |
a4636960 MC |
4724 | |
4725 | CNIC_WR(dev, BNX2_MQ_CONFIG, val); | |
4726 | ||
4727 | CNIC_WR(dev, BNX2_HC_COMP_PROD_TRIP, (2 << 16) | 8); | |
4728 | CNIC_WR(dev, BNX2_HC_COM_TICKS, (64 << 16) | 220); | |
4729 | CNIC_WR(dev, BNX2_HC_CMD_TICKS, (64 << 16) | 220); | |
4730 | ||
4731 | err = cnic_setup_5709_context(dev, 1); | |
4732 | if (err) | |
4733 | return err; | |
4734 | ||
4735 | cnic_init_context(dev, KWQ_CID); | |
4736 | cnic_init_context(dev, KCQ_CID); | |
4737 | ||
e6c28894 | 4738 | kwq_cid_addr = GET_CID_ADDR(KWQ_CID); |
a4636960 MC |
4739 | cp->kwq_io_addr = MB_GET_CID_ADDR(KWQ_CID) + L5_KRNLQ_HOST_QIDX; |
4740 | ||
4741 | cp->max_kwq_idx = MAX_KWQ_IDX; | |
4742 | cp->kwq_prod_idx = 0; | |
4743 | cp->kwq_con_idx = 0; | |
1f1332a3 | 4744 | set_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags); |
a4636960 | 4745 | |
4ce45e02 | 4746 | if (BNX2_CHIP(cp) == BNX2_CHIP_5706 || BNX2_CHIP(cp) == BNX2_CHIP_5708) |
a4636960 MC |
4747 | cp->kwq_con_idx_ptr = &sblk->status_rx_quick_consumer_index15; |
4748 | else | |
4749 | cp->kwq_con_idx_ptr = &sblk->status_cmd_consumer_index; | |
4750 | ||
4751 | /* Initialize the kernel work queue context. */ | |
4752 | val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE | | |
be1fefc2 | 4753 | (CNIC_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ; |
e6c28894 | 4754 | cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_TYPE, val); |
a4636960 | 4755 | |
be1fefc2 | 4756 | val = (CNIC_PAGE_SIZE / sizeof(struct kwqe) - 1) << 16; |
e6c28894 | 4757 | cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val); |
a4636960 | 4758 | |
be1fefc2 | 4759 | val = ((CNIC_PAGE_SIZE / sizeof(struct kwqe)) << 16) | KWQ_PAGE_CNT; |
e6c28894 | 4760 | cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val); |
a4636960 MC |
4761 | |
4762 | val = (u32) ((u64) cp->kwq_info.pgtbl_map >> 32); | |
e6c28894 | 4763 | cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val); |
a4636960 MC |
4764 | |
4765 | val = (u32) cp->kwq_info.pgtbl_map; | |
e6c28894 MC |
4766 | cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val); |
4767 | ||
4768 | kcq_cid_addr = GET_CID_ADDR(KCQ_CID); | |
4769 | cp->kcq1.io_addr = MB_GET_CID_ADDR(KCQ_CID) + L5_KRNLQ_HOST_QIDX; | |
a4636960 | 4770 | |
e6c28894 MC |
4771 | cp->kcq1.sw_prod_idx = 0; |
4772 | cp->kcq1.hw_prod_idx_ptr = | |
64699336 | 4773 | &sblk->status_completion_producer_index; |
a4636960 | 4774 | |
64699336 | 4775 | cp->kcq1.status_idx_ptr = &sblk->status_idx; |
a4636960 MC |
4776 | |
4777 | /* Initialize the kernel complete queue context. */ | |
4778 | val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE | | |
be1fefc2 | 4779 | (CNIC_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ; |
e6c28894 | 4780 | cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_TYPE, val); |
a4636960 | 4781 | |
be1fefc2 | 4782 | val = (CNIC_PAGE_SIZE / sizeof(struct kcqe) - 1) << 16; |
e6c28894 | 4783 | cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val); |
a4636960 | 4784 | |
be1fefc2 | 4785 | val = ((CNIC_PAGE_SIZE / sizeof(struct kcqe)) << 16) | KCQ_PAGE_CNT; |
e6c28894 | 4786 | cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val); |
a4636960 | 4787 | |
e6c28894 MC |
4788 | val = (u32) ((u64) cp->kcq1.dma.pgtbl_map >> 32); |
4789 | cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val); | |
a4636960 | 4790 | |
e6c28894 MC |
4791 | val = (u32) cp->kcq1.dma.pgtbl_map; |
4792 | cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val); | |
a4636960 MC |
4793 | |
4794 | cp->int_num = 0; | |
4795 | if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) { | |
e6c28894 | 4796 | struct status_block_msix *msblk = cp->status_blk.bnx2; |
a4636960 | 4797 | u32 sb_id = cp->status_blk_num; |
d0549382 | 4798 | u32 sb = BNX2_L2CTX_L5_STATUSB_NUM(sb_id); |
a4636960 | 4799 | |
e6c28894 | 4800 | cp->kcq1.hw_prod_idx_ptr = |
64699336 JP |
4801 | &msblk->status_completion_producer_index; |
4802 | cp->kcq1.status_idx_ptr = &msblk->status_idx; | |
4803 | cp->kwq_con_idx_ptr = &msblk->status_cmd_consumer_index; | |
a4636960 | 4804 | cp->int_num = sb_id << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT; |
e6c28894 MC |
4805 | cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_HOST_QIDX, sb); |
4806 | cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_HOST_QIDX, sb); | |
a4636960 MC |
4807 | } |
4808 | ||
4809 | /* Enable Commnad Scheduler notification when we write to the | |
4810 | * host producer index of the kernel contexts. */ | |
4811 | CNIC_WR(dev, BNX2_MQ_KNL_CMD_MASK1, 2); | |
4812 | ||
4813 | /* Enable Command Scheduler notification when we write to either | |
4814 | * the Send Queue or Receive Queue producer indexes of the kernel | |
4815 | * bypass contexts. */ | |
4816 | CNIC_WR(dev, BNX2_MQ_KNL_BYP_CMD_MASK1, 7); | |
4817 | CNIC_WR(dev, BNX2_MQ_KNL_BYP_WRITE_MASK1, 7); | |
4818 | ||
4819 | /* Notify COM when the driver post an application buffer. */ | |
4820 | CNIC_WR(dev, BNX2_MQ_KNL_RX_V2P_MASK2, 0x2000); | |
4821 | ||
4822 | /* Set the CP and COM doorbells. These two processors polls the | |
4823 | * doorbell for a non zero value before running. This must be done | |
4824 | * after setting up the kernel queue contexts. */ | |
4825 | cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 1); | |
4826 | cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 1); | |
4827 | ||
4828 | cnic_init_bnx2_tx_ring(dev); | |
4829 | cnic_init_bnx2_rx_ring(dev); | |
4830 | ||
4831 | err = cnic_init_bnx2_irq(dev); | |
4832 | if (err) { | |
ddf79b20 | 4833 | netdev_err(dev->netdev, "cnic_init_irq failed\n"); |
a4636960 MC |
4834 | cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0); |
4835 | cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0); | |
4836 | return err; | |
4837 | } | |
4838 | ||
ad9b4359 MC |
4839 | ethdev->drv_state |= CNIC_DRV_STATE_HANDLES_IRQ; |
4840 | ||
a4636960 MC |
4841 | return 0; |
4842 | } | |
4843 | ||
71034ba8 MC |
4844 | static void cnic_setup_bnx2x_context(struct cnic_dev *dev) |
4845 | { | |
4846 | struct cnic_local *cp = dev->cnic_priv; | |
4847 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
4848 | u32 start_offset = ethdev->ctx_tbl_offset; | |
4849 | int i; | |
4850 | ||
4851 | for (i = 0; i < cp->ctx_blks; i++) { | |
4852 | struct cnic_ctx *ctx = &cp->ctx_arr[i]; | |
4853 | dma_addr_t map = ctx->mapping; | |
4854 | ||
4855 | if (cp->ctx_align) { | |
4856 | unsigned long mask = cp->ctx_align - 1; | |
4857 | ||
4858 | map = (map + mask) & ~mask; | |
4859 | } | |
4860 | ||
4861 | cnic_ctx_tbl_wr(dev, start_offset + i, map); | |
4862 | } | |
4863 | } | |
4864 | ||
4865 | static int cnic_init_bnx2x_irq(struct cnic_dev *dev) | |
4866 | { | |
4867 | struct cnic_local *cp = dev->cnic_priv; | |
4868 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
4869 | int err = 0; | |
4870 | ||
164165da | 4871 | tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2x_bh, |
71034ba8 | 4872 | (unsigned long) dev); |
6e0dc643 MC |
4873 | if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) |
4874 | err = cnic_request_irq(dev); | |
4875 | ||
71034ba8 MC |
4876 | return err; |
4877 | } | |
4878 | ||
523224a3 DK |
4879 | static inline void cnic_storm_memset_hc_disable(struct cnic_dev *dev, |
4880 | u16 sb_id, u8 sb_index, | |
4881 | u8 disable) | |
4882 | { | |
68c64d20 | 4883 | struct bnx2x *bp = netdev_priv(dev->netdev); |
523224a3 DK |
4884 | |
4885 | u32 addr = BAR_CSTRORM_INTMEM + | |
4886 | CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) + | |
4887 | offsetof(struct hc_status_block_data_e1x, index_data) + | |
4888 | sizeof(struct hc_index_data)*sb_index + | |
4889 | offsetof(struct hc_index_data, flags); | |
4890 | u16 flags = CNIC_RD16(dev, addr); | |
4891 | /* clear and set */ | |
4892 | flags &= ~HC_INDEX_DATA_HC_ENABLED; | |
4893 | flags |= (((~disable) << HC_INDEX_DATA_HC_ENABLED_SHIFT) & | |
4894 | HC_INDEX_DATA_HC_ENABLED); | |
4895 | CNIC_WR16(dev, addr, flags); | |
4896 | } | |
4897 | ||
71034ba8 MC |
4898 | static void cnic_enable_bnx2x_int(struct cnic_dev *dev) |
4899 | { | |
4900 | struct cnic_local *cp = dev->cnic_priv; | |
68c64d20 | 4901 | struct bnx2x *bp = netdev_priv(dev->netdev); |
71034ba8 | 4902 | u8 sb_id = cp->status_blk_num; |
71034ba8 MC |
4903 | |
4904 | CNIC_WR8(dev, BAR_CSTRORM_INTMEM + | |
523224a3 DK |
4905 | CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) + |
4906 | offsetof(struct hc_status_block_data_e1x, index_data) + | |
4907 | sizeof(struct hc_index_data)*HC_INDEX_ISCSI_EQ_CONS + | |
619c5cb6 | 4908 | offsetof(struct hc_index_data, timeout), 64 / 4); |
523224a3 | 4909 | cnic_storm_memset_hc_disable(dev, sb_id, HC_INDEX_ISCSI_EQ_CONS, 0); |
71034ba8 MC |
4910 | } |
4911 | ||
4912 | static void cnic_disable_bnx2x_int_sync(struct cnic_dev *dev) | |
4913 | { | |
4914 | } | |
4915 | ||
523224a3 DK |
4916 | static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev, |
4917 | struct client_init_ramrod_data *data) | |
71034ba8 MC |
4918 | { |
4919 | struct cnic_local *cp = dev->cnic_priv; | |
104a43ed | 4920 | struct bnx2x *bp = netdev_priv(dev->netdev); |
cd801536 MC |
4921 | struct cnic_uio_dev *udev = cp->udev; |
4922 | union eth_tx_bd_types *txbd = (union eth_tx_bd_types *) udev->l2_ring; | |
4923 | dma_addr_t buf_map, ring_map = udev->l2_ring_map; | |
523224a3 | 4924 | struct host_sp_status_block *sb = cp->bnx2x_def_status_blk; |
71034ba8 | 4925 | int i; |
5159fdc1 | 4926 | u32 cli = cp->ethdev->iscsi_l2_client_id; |
71034ba8 MC |
4927 | u32 val; |
4928 | ||
be1fefc2 | 4929 | memset(txbd, 0, CNIC_PAGE_SIZE); |
71034ba8 | 4930 | |
cd801536 | 4931 | buf_map = udev->l2_buf_map; |
2bc4078e | 4932 | for (i = 0; i < BNX2_MAX_TX_DESC_CNT; i += 3, txbd += 3) { |
71034ba8 | 4933 | struct eth_tx_start_bd *start_bd = &txbd->start_bd; |
96bed4b9 YM |
4934 | struct eth_tx_parse_bd_e1x *pbd_e1x = |
4935 | &((txbd + 1)->parse_bd_e1x); | |
4936 | struct eth_tx_parse_bd_e2 *pbd_e2 = &((txbd + 1)->parse_bd_e2); | |
71034ba8 MC |
4937 | struct eth_tx_bd *reg_bd = &((txbd + 2)->reg_bd); |
4938 | ||
4939 | start_bd->addr_hi = cpu_to_le32((u64) buf_map >> 32); | |
4940 | start_bd->addr_lo = cpu_to_le32(buf_map & 0xffffffff); | |
4941 | reg_bd->addr_hi = start_bd->addr_hi; | |
4942 | reg_bd->addr_lo = start_bd->addr_lo + 0x10; | |
4943 | start_bd->nbytes = cpu_to_le16(0x10); | |
4944 | start_bd->nbd = cpu_to_le16(3); | |
4945 | start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD; | |
96bed4b9 | 4946 | start_bd->general_data &= ~ETH_TX_START_BD_PARSE_NBDS; |
71034ba8 MC |
4947 | start_bd->general_data |= (1 << ETH_TX_START_BD_HDR_NBDS_SHIFT); |
4948 | ||
104a43ed | 4949 | if (BNX2X_CHIP_IS_E2_PLUS(bp)) |
96bed4b9 | 4950 | pbd_e2->parsing_data = (UNICAST_ADDRESS << |
4ce45e02 | 4951 | ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE_SHIFT); |
96bed4b9 | 4952 | else |
4ce45e02 | 4953 | pbd_e1x->global_data = (UNICAST_ADDRESS << |
96bed4b9 | 4954 | ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE_SHIFT); |
71034ba8 | 4955 | } |
71034ba8 | 4956 | |
523224a3 | 4957 | val = (u64) ring_map >> 32; |
71034ba8 MC |
4958 | txbd->next_bd.addr_hi = cpu_to_le32(val); |
4959 | ||
523224a3 | 4960 | data->tx.tx_bd_page_base.hi = cpu_to_le32(val); |
71034ba8 | 4961 | |
523224a3 | 4962 | val = (u64) ring_map & 0xffffffff; |
71034ba8 MC |
4963 | txbd->next_bd.addr_lo = cpu_to_le32(val); |
4964 | ||
523224a3 | 4965 | data->tx.tx_bd_page_base.lo = cpu_to_le32(val); |
71034ba8 | 4966 | |
523224a3 DK |
4967 | /* Other ramrod params */ |
4968 | data->tx.tx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_CQ_CONS; | |
4969 | data->tx.tx_status_block_id = BNX2X_DEF_SB_ID; | |
71034ba8 MC |
4970 | |
4971 | /* reset xstorm per client statistics */ | |
523224a3 | 4972 | if (cli < MAX_STAT_COUNTER_ID) { |
619c5cb6 VZ |
4973 | data->general.statistics_zero_flg = 1; |
4974 | data->general.statistics_en_flg = 1; | |
4975 | data->general.statistics_counter_id = cli; | |
6b2a541d | 4976 | } |
71034ba8 MC |
4977 | |
4978 | cp->tx_cons_ptr = | |
523224a3 | 4979 | &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_CQ_CONS]; |
71034ba8 MC |
4980 | } |
4981 | ||
523224a3 DK |
4982 | static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev, |
4983 | struct client_init_ramrod_data *data) | |
71034ba8 MC |
4984 | { |
4985 | struct cnic_local *cp = dev->cnic_priv; | |
104a43ed | 4986 | struct bnx2x *bp = netdev_priv(dev->netdev); |
cd801536 MC |
4987 | struct cnic_uio_dev *udev = cp->udev; |
4988 | struct eth_rx_bd *rxbd = (struct eth_rx_bd *) (udev->l2_ring + | |
be1fefc2 | 4989 | CNIC_PAGE_SIZE); |
71034ba8 | 4990 | struct eth_rx_cqe_next_page *rxcqe = (struct eth_rx_cqe_next_page *) |
be1fefc2 | 4991 | (udev->l2_ring + (2 * CNIC_PAGE_SIZE)); |
523224a3 | 4992 | struct host_sp_status_block *sb = cp->bnx2x_def_status_blk; |
71034ba8 | 4993 | int i; |
5159fdc1 | 4994 | u32 cli = cp->ethdev->iscsi_l2_client_id; |
104a43ed | 4995 | int cl_qzone_id = BNX2X_CL_QZONE_ID(bp, cli); |
71034ba8 | 4996 | u32 val; |
cd801536 | 4997 | dma_addr_t ring_map = udev->l2_ring_map; |
523224a3 DK |
4998 | |
4999 | /* General data */ | |
5000 | data->general.client_id = cli; | |
523224a3 DK |
5001 | data->general.activate_flg = 1; |
5002 | data->general.sp_client_id = cli; | |
619c5cb6 | 5003 | data->general.mtu = cpu_to_le16(cp->l2_single_buf_size - 14); |
a5b3c4ae | 5004 | data->general.func_id = bp->pfid; |
71034ba8 MC |
5005 | |
5006 | for (i = 0; i < BNX2X_MAX_RX_DESC_CNT; i++, rxbd++) { | |
5007 | dma_addr_t buf_map; | |
5008 | int n = (i % cp->l2_rx_ring_size) + 1; | |
5009 | ||
cd801536 | 5010 | buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size); |
71034ba8 MC |
5011 | rxbd->addr_hi = cpu_to_le32((u64) buf_map >> 32); |
5012 | rxbd->addr_lo = cpu_to_le32(buf_map & 0xffffffff); | |
5013 | } | |
71034ba8 | 5014 | |
be1fefc2 | 5015 | val = (u64) (ring_map + CNIC_PAGE_SIZE) >> 32; |
71034ba8 | 5016 | rxbd->addr_hi = cpu_to_le32(val); |
523224a3 | 5017 | data->rx.bd_page_base.hi = cpu_to_le32(val); |
71034ba8 | 5018 | |
be1fefc2 | 5019 | val = (u64) (ring_map + CNIC_PAGE_SIZE) & 0xffffffff; |
71034ba8 | 5020 | rxbd->addr_lo = cpu_to_le32(val); |
523224a3 | 5021 | data->rx.bd_page_base.lo = cpu_to_le32(val); |
71034ba8 MC |
5022 | |
5023 | rxcqe += BNX2X_MAX_RCQ_DESC_CNT; | |
be1fefc2 | 5024 | val = (u64) (ring_map + (2 * CNIC_PAGE_SIZE)) >> 32; |
71034ba8 | 5025 | rxcqe->addr_hi = cpu_to_le32(val); |
523224a3 | 5026 | data->rx.cqe_page_base.hi = cpu_to_le32(val); |
71034ba8 | 5027 | |
be1fefc2 | 5028 | val = (u64) (ring_map + (2 * CNIC_PAGE_SIZE)) & 0xffffffff; |
71034ba8 | 5029 | rxcqe->addr_lo = cpu_to_le32(val); |
523224a3 | 5030 | data->rx.cqe_page_base.lo = cpu_to_le32(val); |
71034ba8 | 5031 | |
523224a3 DK |
5032 | /* Other ramrod params */ |
5033 | data->rx.client_qzone_id = cl_qzone_id; | |
5034 | data->rx.rx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS; | |
5035 | data->rx.status_block_id = BNX2X_DEF_SB_ID; | |
71034ba8 | 5036 | |
523224a3 | 5037 | data->rx.cache_line_alignment_log_size = L1_CACHE_SHIFT; |
71034ba8 | 5038 | |
619c5cb6 | 5039 | data->rx.max_bytes_on_bd = cpu_to_le16(cp->l2_single_buf_size); |
523224a3 | 5040 | data->rx.outer_vlan_removal_enable_flg = 1; |
619c5cb6 VZ |
5041 | data->rx.silent_vlan_removal_flg = 1; |
5042 | data->rx.silent_vlan_value = 0; | |
5043 | data->rx.silent_vlan_mask = 0xffff; | |
71034ba8 MC |
5044 | |
5045 | cp->rx_cons_ptr = | |
523224a3 | 5046 | &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS]; |
5159fdc1 | 5047 | cp->rx_cons = *cp->rx_cons_ptr; |
71034ba8 MC |
5048 | } |
5049 | ||
e21ba414 MC |
5050 | static void cnic_init_bnx2x_kcq(struct cnic_dev *dev) |
5051 | { | |
5052 | struct cnic_local *cp = dev->cnic_priv; | |
68c64d20 | 5053 | struct bnx2x *bp = netdev_priv(dev->netdev); |
a5b3c4ae | 5054 | u32 pfid = bp->pfid; |
e21ba414 MC |
5055 | |
5056 | cp->kcq1.io_addr = BAR_CSTRORM_INTMEM + | |
5057 | CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0); | |
5058 | cp->kcq1.sw_prod_idx = 0; | |
5059 | ||
104a43ed | 5060 | if (BNX2X_CHIP_IS_E2_PLUS(bp)) { |
e21ba414 MC |
5061 | struct host_hc_status_block_e2 *sb = cp->status_blk.gen; |
5062 | ||
5063 | cp->kcq1.hw_prod_idx_ptr = | |
5064 | &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS]; | |
5065 | cp->kcq1.status_idx_ptr = | |
5066 | &sb->sb.running_index[SM_RX_ID]; | |
5067 | } else { | |
5068 | struct host_hc_status_block_e1x *sb = cp->status_blk.gen; | |
5069 | ||
5070 | cp->kcq1.hw_prod_idx_ptr = | |
5071 | &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS]; | |
5072 | cp->kcq1.status_idx_ptr = | |
5073 | &sb->sb.running_index[SM_RX_ID]; | |
5074 | } | |
5075 | ||
104a43ed | 5076 | if (BNX2X_CHIP_IS_E2_PLUS(bp)) { |
e21ba414 MC |
5077 | struct host_hc_status_block_e2 *sb = cp->status_blk.gen; |
5078 | ||
5079 | cp->kcq2.io_addr = BAR_USTRORM_INTMEM + | |
5080 | USTORM_FCOE_EQ_PROD_OFFSET(pfid); | |
5081 | cp->kcq2.sw_prod_idx = 0; | |
5082 | cp->kcq2.hw_prod_idx_ptr = | |
5083 | &sb->sb.index_values[HC_INDEX_FCOE_EQ_CONS]; | |
5084 | cp->kcq2.status_idx_ptr = | |
5085 | &sb->sb.running_index[SM_RX_ID]; | |
5086 | } | |
5087 | } | |
5088 | ||
71034ba8 MC |
5089 | static int cnic_start_bnx2x_hw(struct cnic_dev *dev) |
5090 | { | |
5091 | struct cnic_local *cp = dev->cnic_priv; | |
68c64d20 | 5092 | struct bnx2x *bp = netdev_priv(dev->netdev); |
523224a3 | 5093 | struct cnic_eth_dev *ethdev = cp->ethdev; |
68c64d20 | 5094 | int func, ret; |
1420398d | 5095 | u32 pfid; |
71034ba8 | 5096 | |
a9e0a4f2 | 5097 | dev->stats_addr = ethdev->addr_drv_info_to_mcp; |
68c64d20 | 5098 | cp->func = bp->pf_num; |
ee87a82a | 5099 | |
68c64d20 | 5100 | func = CNIC_FUNC(cp); |
a5b3c4ae | 5101 | pfid = bp->pfid; |
1420398d | 5102 | |
71034ba8 | 5103 | ret = cnic_init_id_tbl(&cp->cid_tbl, MAX_ISCSI_TBL_SZ, |
11f23aa8 | 5104 | cp->iscsi_start_cid, 0); |
71034ba8 MC |
5105 | |
5106 | if (ret) | |
5107 | return -ENOMEM; | |
5108 | ||
104a43ed | 5109 | if (BNX2X_CHIP_IS_E2_PLUS(bp)) { |
dc219a2e | 5110 | ret = cnic_init_id_tbl(&cp->fcoe_cid_tbl, dev->max_fcoe_conn, |
11f23aa8 | 5111 | cp->fcoe_start_cid, 0); |
e1928c86 MC |
5112 | |
5113 | if (ret) | |
5114 | return -ENOMEM; | |
5115 | } | |
5116 | ||
523224a3 DK |
5117 | cp->bnx2x_igu_sb_id = ethdev->irq_arr[0].status_blk_num2; |
5118 | ||
e21ba414 | 5119 | cnic_init_bnx2x_kcq(dev); |
71034ba8 | 5120 | |
71034ba8 | 5121 | /* Only 1 EQ */ |
e6c28894 | 5122 | CNIC_WR16(dev, cp->kcq1.io_addr, MAX_KCQ_IDX); |
71034ba8 | 5123 | CNIC_WR(dev, BAR_CSTRORM_INTMEM + |
1420398d | 5124 | CSTORM_ISCSI_EQ_CONS_OFFSET(pfid, 0), 0); |
71034ba8 | 5125 | CNIC_WR(dev, BAR_CSTRORM_INTMEM + |
1420398d | 5126 | CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0), |
e6c28894 | 5127 | cp->kcq1.dma.pg_map_arr[1] & 0xffffffff); |
71034ba8 | 5128 | CNIC_WR(dev, BAR_CSTRORM_INTMEM + |
1420398d | 5129 | CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0) + 4, |
e6c28894 | 5130 | (u64) cp->kcq1.dma.pg_map_arr[1] >> 32); |
71034ba8 | 5131 | CNIC_WR(dev, BAR_CSTRORM_INTMEM + |
1420398d | 5132 | CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0), |
e6c28894 | 5133 | cp->kcq1.dma.pg_map_arr[0] & 0xffffffff); |
71034ba8 | 5134 | CNIC_WR(dev, BAR_CSTRORM_INTMEM + |
1420398d | 5135 | CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0) + 4, |
e6c28894 | 5136 | (u64) cp->kcq1.dma.pg_map_arr[0] >> 32); |
71034ba8 | 5137 | CNIC_WR8(dev, BAR_CSTRORM_INTMEM + |
1420398d | 5138 | CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_VALID_OFFSET(pfid, 0), 1); |
71034ba8 | 5139 | CNIC_WR16(dev, BAR_CSTRORM_INTMEM + |
1420398d | 5140 | CSTORM_ISCSI_EQ_SB_NUM_OFFSET(pfid, 0), cp->status_blk_num); |
71034ba8 | 5141 | CNIC_WR8(dev, BAR_CSTRORM_INTMEM + |
1420398d | 5142 | CSTORM_ISCSI_EQ_SB_INDEX_OFFSET(pfid, 0), |
523224a3 | 5143 | HC_INDEX_ISCSI_EQ_CONS); |
71034ba8 | 5144 | |
71034ba8 | 5145 | CNIC_WR(dev, BAR_USTRORM_INTMEM + |
1420398d | 5146 | USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid), |
71034ba8 MC |
5147 | cp->gbl_buf_info.pg_map_arr[0] & 0xffffffff); |
5148 | CNIC_WR(dev, BAR_USTRORM_INTMEM + | |
1420398d | 5149 | USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid) + 4, |
71034ba8 MC |
5150 | (u64) cp->gbl_buf_info.pg_map_arr[0] >> 32); |
5151 | ||
523224a3 DK |
5152 | CNIC_WR(dev, BAR_TSTRORM_INTMEM + |
5153 | TSTORM_ISCSI_TCP_LOCAL_ADV_WND_OFFSET(pfid), DEF_RCV_BUF); | |
5154 | ||
71034ba8 MC |
5155 | cnic_setup_bnx2x_context(dev); |
5156 | ||
71034ba8 MC |
5157 | ret = cnic_init_bnx2x_irq(dev); |
5158 | if (ret) | |
5159 | return ret; | |
5160 | ||
ad9b4359 | 5161 | ethdev->drv_state |= CNIC_DRV_STATE_HANDLES_IRQ; |
71034ba8 MC |
5162 | return 0; |
5163 | } | |
5164 | ||
86b53606 MC |
5165 | static void cnic_init_rings(struct cnic_dev *dev) |
5166 | { | |
541a7810 | 5167 | struct cnic_local *cp = dev->cnic_priv; |
68c64d20 | 5168 | struct bnx2x *bp = netdev_priv(dev->netdev); |
cd801536 | 5169 | struct cnic_uio_dev *udev = cp->udev; |
541a7810 MC |
5170 | |
5171 | if (test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags)) | |
5172 | return; | |
5173 | ||
86b53606 MC |
5174 | if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) { |
5175 | cnic_init_bnx2_tx_ring(dev); | |
5176 | cnic_init_bnx2_rx_ring(dev); | |
541a7810 | 5177 | set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags); |
71034ba8 | 5178 | } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) { |
5159fdc1 MC |
5179 | u32 cli = cp->ethdev->iscsi_l2_client_id; |
5180 | u32 cid = cp->ethdev->iscsi_l2_cid; | |
68d7c1aa | 5181 | u32 cl_qzone_id; |
523224a3 | 5182 | struct client_init_ramrod_data *data; |
71034ba8 MC |
5183 | union l5cm_specific_data l5_data; |
5184 | struct ustorm_eth_rx_producers rx_prods = {0}; | |
e1dd883c | 5185 | u32 off, i, *cid_ptr; |
71034ba8 MC |
5186 | |
5187 | rx_prods.bd_prod = 0; | |
5188 | rx_prods.cqe_prod = BNX2X_MAX_RCQ_DESC_CNT; | |
5189 | barrier(); | |
5190 | ||
104a43ed | 5191 | cl_qzone_id = BNX2X_CL_QZONE_ID(bp, cli); |
523224a3 | 5192 | |
c7596b79 | 5193 | off = BAR_USTRORM_INTMEM + |
104a43ed | 5194 | (BNX2X_CHIP_IS_E2_PLUS(bp) ? |
ee87a82a | 5195 | USTORM_RX_PRODS_E2_OFFSET(cl_qzone_id) : |
5bf945a8 | 5196 | USTORM_RX_PRODS_E1X_OFFSET(BP_PORT(bp), cli)); |
71034ba8 MC |
5197 | |
5198 | for (i = 0; i < sizeof(struct ustorm_eth_rx_producers) / 4; i++) | |
c7596b79 | 5199 | CNIC_WR(dev, off + i * 4, ((u32 *) &rx_prods)[i]); |
71034ba8 | 5200 | |
48f753d2 MC |
5201 | set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags); |
5202 | ||
cd801536 | 5203 | data = udev->l2_buf; |
e1dd883c | 5204 | cid_ptr = udev->l2_buf + 12; |
523224a3 DK |
5205 | |
5206 | memset(data, 0, sizeof(*data)); | |
5207 | ||
5208 | cnic_init_bnx2x_tx_ring(dev, data); | |
5209 | cnic_init_bnx2x_rx_ring(dev, data); | |
5210 | ||
cd801536 MC |
5211 | l5_data.phy_address.lo = udev->l2_buf_map & 0xffffffff; |
5212 | l5_data.phy_address.hi = (u64) udev->l2_buf_map >> 32; | |
523224a3 | 5213 | |
541a7810 MC |
5214 | set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags); |
5215 | ||
71034ba8 | 5216 | cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_CLIENT_SETUP, |
68d7c1aa | 5217 | cid, ETH_CONNECTION_TYPE, &l5_data); |
523224a3 | 5218 | |
48f753d2 MC |
5219 | i = 0; |
5220 | while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) && | |
5221 | ++i < 10) | |
5222 | msleep(1); | |
5223 | ||
5224 | if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags)) | |
5225 | netdev_err(dev->netdev, | |
5226 | "iSCSI CLIENT_SETUP did not complete\n"); | |
c2bff63f | 5227 | cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1); |
5159fdc1 | 5228 | cnic_ring_ctl(dev, cid, cli, 1); |
f78afb35 MC |
5229 | *cid_ptr = cid >> 4; |
5230 | *(cid_ptr + 1) = cid * bp->db_size; | |
d15e2a92 | 5231 | *(cid_ptr + 2) = UIO_USE_TX_DOORBELL; |
86b53606 MC |
5232 | } |
5233 | } | |
5234 | ||
5235 | static void cnic_shutdown_rings(struct cnic_dev *dev) | |
5236 | { | |
541a7810 | 5237 | struct cnic_local *cp = dev->cnic_priv; |
e1dd883c MC |
5238 | struct cnic_uio_dev *udev = cp->udev; |
5239 | void *rx_ring; | |
541a7810 MC |
5240 | |
5241 | if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags)) | |
5242 | return; | |
5243 | ||
86b53606 MC |
5244 | if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) { |
5245 | cnic_shutdown_bnx2_rx_ring(dev); | |
71034ba8 | 5246 | } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) { |
5159fdc1 MC |
5247 | u32 cli = cp->ethdev->iscsi_l2_client_id; |
5248 | u32 cid = cp->ethdev->iscsi_l2_cid; | |
8b065b67 | 5249 | union l5cm_specific_data l5_data; |
48f753d2 | 5250 | int i; |
71034ba8 | 5251 | |
5159fdc1 | 5252 | cnic_ring_ctl(dev, cid, cli, 0); |
8b065b67 | 5253 | |
48f753d2 MC |
5254 | set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags); |
5255 | ||
8b065b67 MC |
5256 | l5_data.phy_address.lo = cli; |
5257 | l5_data.phy_address.hi = 0; | |
5258 | cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_HALT, | |
5159fdc1 | 5259 | cid, ETH_CONNECTION_TYPE, &l5_data); |
48f753d2 MC |
5260 | i = 0; |
5261 | while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) && | |
5262 | ++i < 10) | |
5263 | msleep(1); | |
5264 | ||
5265 | if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags)) | |
5266 | netdev_err(dev->netdev, | |
5267 | "iSCSI CLIENT_HALT did not complete\n"); | |
c2bff63f | 5268 | cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1); |
1bcdc32c MC |
5269 | |
5270 | memset(&l5_data, 0, sizeof(l5_data)); | |
523224a3 | 5271 | cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL, |
68d7c1aa | 5272 | cid, NONE_CONNECTION_TYPE, &l5_data); |
1bcdc32c | 5273 | msleep(10); |
86b53606 | 5274 | } |
541a7810 | 5275 | clear_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags); |
be1fefc2 MC |
5276 | rx_ring = udev->l2_ring + CNIC_PAGE_SIZE; |
5277 | memset(rx_ring, 0, CNIC_PAGE_SIZE); | |
86b53606 MC |
5278 | } |
5279 | ||
a3059b12 | 5280 | static int cnic_register_netdev(struct cnic_dev *dev) |
a4636960 MC |
5281 | { |
5282 | struct cnic_local *cp = dev->cnic_priv; | |
5283 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
5284 | int err; | |
5285 | ||
a3059b12 MC |
5286 | if (!ethdev) |
5287 | return -ENODEV; | |
5288 | ||
5289 | if (ethdev->drv_state & CNIC_DRV_STATE_REGD) | |
5290 | return 0; | |
a4636960 MC |
5291 | |
5292 | err = ethdev->drv_register_cnic(dev->netdev, cp->cnic_ops, dev); | |
a3059b12 | 5293 | if (err) |
ddf79b20 | 5294 | netdev_err(dev->netdev, "register_cnic failed\n"); |
a3059b12 | 5295 | |
9e9402eb MC |
5296 | /* Read iSCSI config again. On some bnx2x device, iSCSI config |
5297 | * can change after firmware is downloaded. | |
5298 | */ | |
5299 | dev->max_iscsi_conn = ethdev->max_iscsi_conn; | |
5300 | if (ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI) | |
5301 | dev->max_iscsi_conn = 0; | |
5302 | ||
a3059b12 MC |
5303 | return err; |
5304 | } | |
5305 | ||
5306 | static void cnic_unregister_netdev(struct cnic_dev *dev) | |
5307 | { | |
5308 | struct cnic_local *cp = dev->cnic_priv; | |
5309 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
5310 | ||
5311 | if (!ethdev) | |
5312 | return; | |
5313 | ||
5314 | ethdev->drv_unregister_cnic(dev->netdev); | |
5315 | } | |
5316 | ||
5317 | static int cnic_start_hw(struct cnic_dev *dev) | |
5318 | { | |
5319 | struct cnic_local *cp = dev->cnic_priv; | |
5320 | struct cnic_eth_dev *ethdev = cp->ethdev; | |
5321 | int err; | |
5322 | ||
5323 | if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) | |
5324 | return -EALREADY; | |
a4636960 MC |
5325 | |
5326 | dev->regview = ethdev->io_base; | |
a4636960 MC |
5327 | pci_dev_get(dev->pcidev); |
5328 | cp->func = PCI_FUNC(dev->pcidev->devfn); | |
a4dde3ab | 5329 | cp->status_blk.gen = ethdev->irq_arr[0].status_blk; |
a4636960 MC |
5330 | cp->status_blk_num = ethdev->irq_arr[0].status_blk_num; |
5331 | ||
5332 | err = cp->alloc_resc(dev); | |
5333 | if (err) { | |
ddf79b20 | 5334 | netdev_err(dev->netdev, "allocate resource failure\n"); |
a4636960 MC |
5335 | goto err1; |
5336 | } | |
5337 | ||
5338 | err = cp->start_hw(dev); | |
5339 | if (err) | |
5340 | goto err1; | |
5341 | ||
5342 | err = cnic_cm_open(dev); | |
5343 | if (err) | |
5344 | goto err1; | |
5345 | ||
5346 | set_bit(CNIC_F_CNIC_UP, &dev->flags); | |
5347 | ||
5348 | cp->enable_int(dev); | |
5349 | ||
5350 | return 0; | |
5351 | ||
5352 | err1: | |
f37bd0cc JM |
5353 | if (ethdev->drv_state & CNIC_DRV_STATE_HANDLES_IRQ) |
5354 | cp->stop_hw(dev); | |
5355 | else | |
5356 | cp->free_resc(dev); | |
a4636960 | 5357 | pci_dev_put(dev->pcidev); |
a4636960 MC |
5358 | return err; |
5359 | } | |
5360 | ||
5361 | static void cnic_stop_bnx2_hw(struct cnic_dev *dev) | |
5362 | { | |
a4636960 MC |
5363 | cnic_disable_bnx2_int_sync(dev); |
5364 | ||
5365 | cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0); | |
5366 | cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0); | |
5367 | ||
5368 | cnic_init_context(dev, KWQ_CID); | |
5369 | cnic_init_context(dev, KCQ_CID); | |
5370 | ||
5371 | cnic_setup_5709_context(dev, 0); | |
5372 | cnic_free_irq(dev); | |
5373 | ||
a4636960 MC |
5374 | cnic_free_resc(dev); |
5375 | } | |
5376 | ||
71034ba8 MC |
5377 | |
5378 | static void cnic_stop_bnx2x_hw(struct cnic_dev *dev) | |
5379 | { | |
5380 | struct cnic_local *cp = dev->cnic_priv; | |
68c64d20 | 5381 | struct bnx2x *bp = netdev_priv(dev->netdev); |
caa9e931 MC |
5382 | u32 hc_index = HC_INDEX_ISCSI_EQ_CONS; |
5383 | u32 sb_id = cp->status_blk_num; | |
5384 | u32 idx_off, syn_off; | |
71034ba8 MC |
5385 | |
5386 | cnic_free_irq(dev); | |
caa9e931 | 5387 | |
104a43ed | 5388 | if (BNX2X_CHIP_IS_E2_PLUS(bp)) { |
caa9e931 MC |
5389 | idx_off = offsetof(struct hc_status_block_e2, index_values) + |
5390 | (hc_index * sizeof(u16)); | |
5391 | ||
5392 | syn_off = CSTORM_HC_SYNC_LINE_INDEX_E2_OFFSET(hc_index, sb_id); | |
5393 | } else { | |
5394 | idx_off = offsetof(struct hc_status_block_e1x, index_values) + | |
5395 | (hc_index * sizeof(u16)); | |
5396 | ||
5397 | syn_off = CSTORM_HC_SYNC_LINE_INDEX_E1X_OFFSET(hc_index, sb_id); | |
5398 | } | |
5399 | CNIC_WR16(dev, BAR_CSTRORM_INTMEM + syn_off, 0); | |
5400 | CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_STATUS_BLOCK_OFFSET(sb_id) + | |
5401 | idx_off, 0); | |
5402 | ||
523224a3 | 5403 | *cp->kcq1.hw_prod_idx_ptr = 0; |
4e9c4fd3 | 5404 | CNIC_WR(dev, BAR_CSTRORM_INTMEM + |
a5b3c4ae | 5405 | CSTORM_ISCSI_EQ_CONS_OFFSET(bp->pfid, 0), 0); |
e6c28894 | 5406 | CNIC_WR16(dev, cp->kcq1.io_addr, 0); |
71034ba8 MC |
5407 | cnic_free_resc(dev); |
5408 | } | |
5409 | ||
a4636960 MC |
5410 | static void cnic_stop_hw(struct cnic_dev *dev) |
5411 | { | |
5412 | if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) { | |
5413 | struct cnic_local *cp = dev->cnic_priv; | |
48f753d2 | 5414 | int i = 0; |
a4636960 | 5415 | |
48f753d2 MC |
5416 | /* Need to wait for the ring shutdown event to complete |
5417 | * before clearing the CNIC_UP flag. | |
5418 | */ | |
82346a7b | 5419 | while (cp->udev && cp->udev->uio_dev != -1 && i < 15) { |
48f753d2 MC |
5420 | msleep(100); |
5421 | i++; | |
5422 | } | |
a3ceeeb8 | 5423 | cnic_shutdown_rings(dev); |
a2028b23 | 5424 | cp->stop_cm(dev); |
ad9b4359 | 5425 | cp->ethdev->drv_state &= ~CNIC_DRV_STATE_HANDLES_IRQ; |
a4636960 | 5426 | clear_bit(CNIC_F_CNIC_UP, &dev->flags); |
2cfa5a04 | 5427 | RCU_INIT_POINTER(cp->ulp_ops[CNIC_ULP_L4], NULL); |
a4636960 MC |
5428 | synchronize_rcu(); |
5429 | cnic_cm_shutdown(dev); | |
5430 | cp->stop_hw(dev); | |
5431 | pci_dev_put(dev->pcidev); | |
5432 | } | |
5433 | } | |
5434 | ||
5435 | static void cnic_free_dev(struct cnic_dev *dev) | |
5436 | { | |
5437 | int i = 0; | |
5438 | ||
5439 | while ((atomic_read(&dev->ref_count) != 0) && i < 10) { | |
5440 | msleep(100); | |
5441 | i++; | |
5442 | } | |
5443 | if (atomic_read(&dev->ref_count) != 0) | |
ddf79b20 | 5444 | netdev_err(dev->netdev, "Failed waiting for ref count to go to zero\n"); |
a4636960 | 5445 | |
ddf79b20 | 5446 | netdev_info(dev->netdev, "Removed CNIC device\n"); |
a4636960 MC |
5447 | dev_put(dev->netdev); |
5448 | kfree(dev); | |
5449 | } | |
5450 | ||
9b8d5044 AC |
5451 | static int cnic_get_fc_npiv_tbl(struct cnic_dev *dev, |
5452 | struct cnic_fc_npiv_tbl *npiv_tbl) | |
5453 | { | |
5454 | struct cnic_local *cp = dev->cnic_priv; | |
5455 | struct bnx2x *bp = netdev_priv(dev->netdev); | |
5456 | int ret; | |
5457 | ||
5458 | if (!test_bit(CNIC_F_CNIC_UP, &dev->flags)) | |
5459 | return -EAGAIN; /* bnx2x is down */ | |
5460 | ||
5461 | if (!BNX2X_CHIP_IS_E2_PLUS(bp)) | |
5462 | return -EINVAL; | |
5463 | ||
5464 | ret = cp->ethdev->drv_get_fc_npiv_tbl(dev->netdev, npiv_tbl); | |
5465 | return ret; | |
5466 | } | |
5467 | ||
a4636960 MC |
5468 | static struct cnic_dev *cnic_alloc_dev(struct net_device *dev, |
5469 | struct pci_dev *pdev) | |
5470 | { | |
5471 | struct cnic_dev *cdev; | |
5472 | struct cnic_local *cp; | |
5473 | int alloc_size; | |
5474 | ||
5475 | alloc_size = sizeof(struct cnic_dev) + sizeof(struct cnic_local); | |
5476 | ||
b2adaca9 JP |
5477 | cdev = kzalloc(alloc_size, GFP_KERNEL); |
5478 | if (cdev == NULL) | |
a4636960 | 5479 | return NULL; |
a4636960 MC |
5480 | |
5481 | cdev->netdev = dev; | |
5482 | cdev->cnic_priv = (char *)cdev + sizeof(struct cnic_dev); | |
5483 | cdev->register_device = cnic_register_device; | |
5484 | cdev->unregister_device = cnic_unregister_device; | |
5485 | cdev->iscsi_nl_msg_recv = cnic_iscsi_nl_msg_recv; | |
9b8d5044 | 5486 | cdev->get_fc_npiv_tbl = cnic_get_fc_npiv_tbl; |
a4636960 MC |
5487 | |
5488 | cp = cdev->cnic_priv; | |
5489 | cp->dev = cdev; | |
a4636960 MC |
5490 | cp->l2_single_buf_size = 0x400; |
5491 | cp->l2_rx_ring_size = 3; | |
5492 | ||
5493 | spin_lock_init(&cp->cnic_ulp_lock); | |
5494 | ||
ddf79b20 | 5495 | netdev_info(dev, "Added CNIC device\n"); |
a4636960 MC |
5496 | |
5497 | return cdev; | |
5498 | } | |
5499 | ||
5500 | static struct cnic_dev *init_bnx2_cnic(struct net_device *dev) | |
5501 | { | |
5502 | struct pci_dev *pdev; | |
5503 | struct cnic_dev *cdev; | |
5504 | struct cnic_local *cp; | |
4bd9b0ff | 5505 | struct bnx2 *bp = netdev_priv(dev); |
a4636960 | 5506 | struct cnic_eth_dev *ethdev = NULL; |
a4636960 | 5507 | |
4bd9b0ff MC |
5508 | if (bp->cnic_probe) |
5509 | ethdev = (bp->cnic_probe)(dev); | |
5510 | ||
a4636960 MC |
5511 | if (!ethdev) |
5512 | return NULL; | |
5513 | ||
5514 | pdev = ethdev->pdev; | |
5515 | if (!pdev) | |
5516 | return NULL; | |
5517 | ||
5518 | dev_hold(dev); | |
5519 | pci_dev_get(pdev); | |
ff938e43 SS |
5520 | if ((pdev->device == PCI_DEVICE_ID_NX2_5709 || |
5521 | pdev->device == PCI_DEVICE_ID_NX2_5709S) && | |
5522 | (pdev->revision < 0x10)) { | |
5523 | pci_dev_put(pdev); | |
5524 | goto cnic_err; | |
a4636960 MC |
5525 | } |
5526 | pci_dev_put(pdev); | |
5527 | ||
5528 | cdev = cnic_alloc_dev(dev, pdev); | |
5529 | if (cdev == NULL) | |
5530 | goto cnic_err; | |
5531 | ||
5532 | set_bit(CNIC_F_BNX2_CLASS, &cdev->flags); | |
5533 | cdev->submit_kwqes = cnic_submit_bnx2_kwqes; | |
5534 | ||
5535 | cp = cdev->cnic_priv; | |
5536 | cp->ethdev = ethdev; | |
5537 | cdev->pcidev = pdev; | |
ee87a82a | 5538 | cp->chip_id = ethdev->chip_id; |
a4636960 | 5539 | |
7625eb2f MC |
5540 | cdev->max_iscsi_conn = ethdev->max_iscsi_conn; |
5541 | ||
a4636960 MC |
5542 | cp->cnic_ops = &cnic_bnx2_ops; |
5543 | cp->start_hw = cnic_start_bnx2_hw; | |
5544 | cp->stop_hw = cnic_stop_bnx2_hw; | |
5545 | cp->setup_pgtbl = cnic_setup_page_tbl; | |
5546 | cp->alloc_resc = cnic_alloc_bnx2_resc; | |
5547 | cp->free_resc = cnic_free_resc; | |
5548 | cp->start_cm = cnic_cm_init_bnx2_hw; | |
5549 | cp->stop_cm = cnic_cm_stop_bnx2_hw; | |
5550 | cp->enable_int = cnic_enable_bnx2_int; | |
5551 | cp->disable_int_sync = cnic_disable_bnx2_int_sync; | |
5552 | cp->close_conn = cnic_close_bnx2_conn; | |
a4636960 MC |
5553 | return cdev; |
5554 | ||
5555 | cnic_err: | |
5556 | dev_put(dev); | |
5557 | return NULL; | |
5558 | } | |
5559 | ||
71034ba8 MC |
5560 | static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev) |
5561 | { | |
5562 | struct pci_dev *pdev; | |
5563 | struct cnic_dev *cdev; | |
5564 | struct cnic_local *cp; | |
4bd9b0ff | 5565 | struct bnx2x *bp = netdev_priv(dev); |
71034ba8 | 5566 | struct cnic_eth_dev *ethdev = NULL; |
71034ba8 | 5567 | |
4bd9b0ff MC |
5568 | if (bp->cnic_probe) |
5569 | ethdev = bp->cnic_probe(dev); | |
5570 | ||
71034ba8 MC |
5571 | if (!ethdev) |
5572 | return NULL; | |
5573 | ||
5574 | pdev = ethdev->pdev; | |
5575 | if (!pdev) | |
5576 | return NULL; | |
5577 | ||
5578 | dev_hold(dev); | |
5579 | cdev = cnic_alloc_dev(dev, pdev); | |
5580 | if (cdev == NULL) { | |
5581 | dev_put(dev); | |
5582 | return NULL; | |
5583 | } | |
5584 | ||
5585 | set_bit(CNIC_F_BNX2X_CLASS, &cdev->flags); | |
5586 | cdev->submit_kwqes = cnic_submit_bnx2x_kwqes; | |
5587 | ||
5588 | cp = cdev->cnic_priv; | |
5589 | cp->ethdev = ethdev; | |
5590 | cdev->pcidev = pdev; | |
ee87a82a | 5591 | cp->chip_id = ethdev->chip_id; |
71034ba8 | 5592 | |
1d187b34 BW |
5593 | cdev->stats_addr = ethdev->addr_drv_info_to_mcp; |
5594 | ||
2ba45142 VZ |
5595 | if (!(ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)) |
5596 | cdev->max_iscsi_conn = ethdev->max_iscsi_conn; | |
104a43ed | 5597 | if (CNIC_SUPPORTS_FCOE(bp)) { |
2ba45142 | 5598 | cdev->max_fcoe_conn = ethdev->max_fcoe_conn; |
0eb43b4b BPG |
5599 | cdev->max_fcoe_exchanges = ethdev->max_fcoe_exchanges; |
5600 | } | |
2ba45142 | 5601 | |
dc219a2e MC |
5602 | if (cdev->max_fcoe_conn > BNX2X_FCOE_NUM_CONNECTIONS) |
5603 | cdev->max_fcoe_conn = BNX2X_FCOE_NUM_CONNECTIONS; | |
5604 | ||
d458cdf7 | 5605 | memcpy(cdev->mac_addr, ethdev->iscsi_mac, ETH_ALEN); |
2ba45142 | 5606 | |
71034ba8 MC |
5607 | cp->cnic_ops = &cnic_bnx2x_ops; |
5608 | cp->start_hw = cnic_start_bnx2x_hw; | |
5609 | cp->stop_hw = cnic_stop_bnx2x_hw; | |
5610 | cp->setup_pgtbl = cnic_setup_page_tbl_le; | |
5611 | cp->alloc_resc = cnic_alloc_bnx2x_resc; | |
5612 | cp->free_resc = cnic_free_resc; | |
5613 | cp->start_cm = cnic_cm_init_bnx2x_hw; | |
5614 | cp->stop_cm = cnic_cm_stop_bnx2x_hw; | |
5615 | cp->enable_int = cnic_enable_bnx2x_int; | |
5616 | cp->disable_int_sync = cnic_disable_bnx2x_int_sync; | |
104a43ed | 5617 | if (BNX2X_CHIP_IS_E2_PLUS(bp)) { |
ee87a82a | 5618 | cp->ack_int = cnic_ack_bnx2x_e2_msix; |
8cc0e028 MC |
5619 | cp->arm_int = cnic_arm_bnx2x_e2_msix; |
5620 | } else { | |
ee87a82a | 5621 | cp->ack_int = cnic_ack_bnx2x_msix; |
8cc0e028 MC |
5622 | cp->arm_int = cnic_arm_bnx2x_msix; |
5623 | } | |
71034ba8 | 5624 | cp->close_conn = cnic_close_bnx2x_conn; |
71034ba8 MC |
5625 | return cdev; |
5626 | } | |
5627 | ||
a4636960 MC |
5628 | static struct cnic_dev *is_cnic_dev(struct net_device *dev) |
5629 | { | |
5630 | struct ethtool_drvinfo drvinfo; | |
5631 | struct cnic_dev *cdev = NULL; | |
5632 | ||
5633 | if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) { | |
5634 | memset(&drvinfo, 0, sizeof(drvinfo)); | |
5635 | dev->ethtool_ops->get_drvinfo(dev, &drvinfo); | |
5636 | ||
5637 | if (!strcmp(drvinfo.driver, "bnx2")) | |
5638 | cdev = init_bnx2_cnic(dev); | |
71034ba8 MC |
5639 | if (!strcmp(drvinfo.driver, "bnx2x")) |
5640 | cdev = init_bnx2x_cnic(dev); | |
a4636960 MC |
5641 | if (cdev) { |
5642 | write_lock(&cnic_dev_lock); | |
5643 | list_add(&cdev->list, &cnic_dev_list); | |
5644 | write_unlock(&cnic_dev_lock); | |
5645 | } | |
5646 | } | |
5647 | return cdev; | |
5648 | } | |
5649 | ||
415199f2 MC |
5650 | static void cnic_rcv_netevent(struct cnic_local *cp, unsigned long event, |
5651 | u16 vlan_id) | |
5652 | { | |
5653 | int if_type; | |
5654 | ||
415199f2 MC |
5655 | for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) { |
5656 | struct cnic_ulp_ops *ulp_ops; | |
5657 | void *ctx; | |
5658 | ||
20f30c2d MC |
5659 | mutex_lock(&cnic_lock); |
5660 | ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type], | |
5661 | lockdep_is_held(&cnic_lock)); | |
5662 | if (!ulp_ops || !ulp_ops->indicate_netevent) { | |
5663 | mutex_unlock(&cnic_lock); | |
415199f2 | 5664 | continue; |
20f30c2d | 5665 | } |
415199f2 MC |
5666 | |
5667 | ctx = cp->ulp_handle[if_type]; | |
5668 | ||
20f30c2d MC |
5669 | set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]); |
5670 | mutex_unlock(&cnic_lock); | |
5671 | ||
415199f2 | 5672 | ulp_ops->indicate_netevent(ctx, event, vlan_id); |
20f30c2d MC |
5673 | |
5674 | clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]); | |
415199f2 | 5675 | } |
415199f2 MC |
5676 | } |
5677 | ||
1aa8b471 | 5678 | /* netdev event handler */ |
a4636960 MC |
5679 | static int cnic_netdev_event(struct notifier_block *this, unsigned long event, |
5680 | void *ptr) | |
5681 | { | |
351638e7 | 5682 | struct net_device *netdev = netdev_notifier_info_to_dev(ptr); |
a4636960 | 5683 | struct cnic_dev *dev; |
a4636960 MC |
5684 | int new_dev = 0; |
5685 | ||
5686 | dev = cnic_from_netdev(netdev); | |
5687 | ||
415fb87d | 5688 | if (!dev && event == NETDEV_REGISTER) { |
a4636960 MC |
5689 | /* Check for the hot-plug device */ |
5690 | dev = is_cnic_dev(netdev); | |
5691 | if (dev) { | |
5692 | new_dev = 1; | |
5693 | cnic_hold(dev); | |
5694 | } | |
5695 | } | |
5696 | if (dev) { | |
5697 | struct cnic_local *cp = dev->cnic_priv; | |
5698 | ||
5699 | if (new_dev) | |
5700 | cnic_ulp_init(dev); | |
5701 | else if (event == NETDEV_UNREGISTER) | |
5702 | cnic_ulp_exit(dev); | |
6053bbf7 | 5703 | |
415fb87d | 5704 | if (event == NETDEV_UP) { |
a3059b12 MC |
5705 | if (cnic_register_netdev(dev) != 0) { |
5706 | cnic_put(dev); | |
5707 | goto done; | |
5708 | } | |
a4636960 MC |
5709 | if (!cnic_start_hw(dev)) |
5710 | cnic_ulp_start(dev); | |
a4636960 MC |
5711 | } |
5712 | ||
415199f2 | 5713 | cnic_rcv_netevent(cp, event, 0); |
a4636960 MC |
5714 | |
5715 | if (event == NETDEV_GOING_DOWN) { | |
a4636960 MC |
5716 | cnic_ulp_stop(dev); |
5717 | cnic_stop_hw(dev); | |
a3059b12 | 5718 | cnic_unregister_netdev(dev); |
a4636960 MC |
5719 | } else if (event == NETDEV_UNREGISTER) { |
5720 | write_lock(&cnic_dev_lock); | |
5721 | list_del_init(&dev->list); | |
5722 | write_unlock(&cnic_dev_lock); | |
5723 | ||
5724 | cnic_put(dev); | |
5725 | cnic_free_dev(dev); | |
5726 | goto done; | |
5727 | } | |
5728 | cnic_put(dev); | |
415199f2 MC |
5729 | } else { |
5730 | struct net_device *realdev; | |
5731 | u16 vid; | |
5732 | ||
5733 | vid = cnic_get_vlan(netdev, &realdev); | |
5734 | if (realdev) { | |
5735 | dev = cnic_from_netdev(realdev); | |
5736 | if (dev) { | |
5737 | vid |= VLAN_TAG_PRESENT; | |
5738 | cnic_rcv_netevent(dev->cnic_priv, event, vid); | |
5739 | cnic_put(dev); | |
5740 | } | |
5741 | } | |
a4636960 MC |
5742 | } |
5743 | done: | |
5744 | return NOTIFY_DONE; | |
5745 | } | |
5746 | ||
5747 | static struct notifier_block cnic_netdev_notifier = { | |
5748 | .notifier_call = cnic_netdev_event | |
5749 | }; | |
5750 | ||
5751 | static void cnic_release(void) | |
5752 | { | |
a3ceeeb8 | 5753 | struct cnic_uio_dev *udev; |
a4636960 | 5754 | |
a3ceeeb8 MC |
5755 | while (!list_empty(&cnic_udev_list)) { |
5756 | udev = list_entry(cnic_udev_list.next, struct cnic_uio_dev, | |
5757 | list); | |
5758 | cnic_free_uio(udev); | |
5759 | } | |
a4636960 MC |
5760 | } |
5761 | ||
5762 | static int __init cnic_init(void) | |
5763 | { | |
5764 | int rc = 0; | |
5765 | ||
ddf79b20 | 5766 | pr_info("%s", version); |
a4636960 MC |
5767 | |
5768 | rc = register_netdevice_notifier(&cnic_netdev_notifier); | |
5769 | if (rc) { | |
5770 | cnic_release(); | |
5771 | return rc; | |
5772 | } | |
5773 | ||
fdf24086 MC |
5774 | cnic_wq = create_singlethread_workqueue("cnic_wq"); |
5775 | if (!cnic_wq) { | |
5776 | cnic_release(); | |
5777 | unregister_netdevice_notifier(&cnic_netdev_notifier); | |
5778 | return -ENOMEM; | |
5779 | } | |
5780 | ||
a4636960 MC |
5781 | return 0; |
5782 | } | |
5783 | ||
5784 | static void __exit cnic_exit(void) | |
5785 | { | |
5786 | unregister_netdevice_notifier(&cnic_netdev_notifier); | |
5787 | cnic_release(); | |
fdf24086 | 5788 | destroy_workqueue(cnic_wq); |
a4636960 MC |
5789 | } |
5790 | ||
5791 | module_init(cnic_init); | |
5792 | module_exit(cnic_exit); |